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371篇 您的检索式:作者名="De Marchi"
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1Esophageal motility abnormalities in gastroesophageal reflux disease显示文摘Esophageal motility abnormalities are among the main factors implicated in the pathogenesis of gastroesophageal reflux disease. The recent introduction in clinical and research practice of novel esophageal testing has markedly improved our understanding of the mechanisms contributing to the development of gastroesophageal reflux disease, allowing a better management of patients with this disorder. In this context, the present article intends to provide an overview of the current literature about esophageal motility dysfunctions in patients with gastroesophageal reflux disease. Esophageal manometry, by recording intraluminal pressure, represents the gold standard to diagnose esophagealmotility abnormalities. In particular, using novel techniques, such as high resolution manometry with or without concurrent intraluminal impedance monitoring, transient lower esophageal sphincter (LES) relaxations, hypotensive LES, ineffective esophageal peristalsis and bolus transit abnormalities have been better defined and strongly implicated in gastroesophageal reflux disease development. Overall, recent findings suggest that esophageal motility abnormalities are increasingly prevalent with increasing severity of reflux disease, from nonerosive reflux disease to erosive reflux disease and Barrett's esophagus. Characterizing esophageal dysmotility among different subgroups of patients with reflux disease may represent a fundamental approach to properly diagnose these patients and, thus, to set up the best therapeutic management. Currently, surgery represents the only reliable way to restore the esophagogastric junction integrity and to reduce transient LES relaxations that are considered to be the predominant mechanism by which gastric contents can enter the esophagus. On that ground, more in depth future studies assessing the pathogenetic role of dysmotility in patients with reflux disease are warranted.Irene Martinucci Nicola de Bortoli Maria Giacchino Giorgia Bodini Elisa Marabotto Santino Marchi Vincenzo Savarino Edoardo Savarino 2014World Journal of Gastrointestinal Pharmacology and Therapeutics2014,5,2:24
2Evaluation of latent links between irritable bowel syndrome and sleep quality显示文摘AIM:To examine the links between quality of sleep and the severity of intestinal symptoms in irritable bow-el syndrome(IBS).METHODS:One hundred and forty-two outpatients(110female,32 male)who met the Rome Ⅲ criteria for IBS with no psychiatric comorbidity were consecutively en-rolled in this study.Data on age,body mass index(BMI),and a set of life-habit variables were recorded,and IBS symptoms and sleep quality were evaluated using the questionnaires IBS Symptom Severity Score(IBS-SSS)and Pittsburgh Sleep Quality Index(PSQI).The associa-tion between severity of IBS and sleep disturbances was evaluated by comparing the global IBS-SSS and PSQI score(Pearson's correlation and Fisher's exact test)and then analyzing the individual items of the IBS-SSS and PSQI questionnaires by a unitary bowel-sleep model based on item response theory(IRT).RESULTS:IBS-SSS ranged from mild to severe(120-470).The global PSQI score ranged from 1 to 17(median 5),and 60 patients were found to be poor sleepers(PSQI>5).The correlation between the global IBS-SSS and PSQI score indicated a weak association(r=0.2 and 95% CI:-0.03 to 0.35,P<0.05),which becomes stronger using our unitary model.Indeed,the IBS and sleep disturbances severities,estimated as latent variables,resulted significantly high intra-subject cor-relation(posterior mean of r=0.45 and 95% CI:0.17 to 0.70,P<0.05).Moreover,the correlations between patient features(age,sex,BMI,daily coffee and alcohol intake)and IBS and sleep disturbances were also ana-lyzed through our unitary model.Age was a signif icant regressor,with patients≤50 years old showing more severe bowel disturbances(posterior mean=-0.38,P<0.05)and less severe sleep disturbances(posterior mean=0.49,P<0.05)than older patients.Higher daily coffee intake was correlated with a lower sever-ity of bowel disturbances(posterior mean=-0.31,P<0.05).Sex(female)and daily alcohol intake(modest)were correlated with less severe sleep disturbances.CONCLUSION:The unitary bowel-sleep model based on IRT revealed a strong positive correlation between the severity of IBS symptoms and sleep disturbances.Massimo Bellini Angelo Gemignani Dario Gambaccini Simona Toti Danilo Menicucci Cristina Stasi Francesco Costa Maria Gloria Mumolo Angelo Ricchiuti Remo Bedini Nicola de Bortoli Santino Marchi 2011World Journal of Gastroenterology2011,17,46:17
3Hemodynamic monitoring during liver transplantation:A state of the art review显示文摘Orthotopic liver transplantation can be marked by significant hemodynamic instability requiring the use of a variety of hemodynamic monitors to aide in intraoperative management. Invasive blood pressure monitoring is essential,but the accuracy of peripheral readings in comparison to central measurements has been questioned. When discrepancies exist,central mean arterial pressure,usually measured at the femoral artery,is considered more indicative of adequateperfusion than those measured peripherally. The traditional pulmonary artery catheter is less frequently used due to its invasive nature and known limitations in measuring preload but still plays an important role in measuring cardiac output(CO) when required and in the management of portopulmonary hypertension. Pulse wave analysis is a newer technology that uses computer algorithms to calculate CO,stroke volume variation(SVV) and pulse pressure variation(PPV). Although SVV and PPV have been found to be accurate predicators of fluid responsiveness,CO measurements are not reliable during liver transplantation. Transesophageal echocardiography is finding an increasing role in the realtime monitoring of preload status,cardiac contractility and the diagnosis of a variety of pathologies. It is limited by the expertise required,limited transgastric views during key portions of the operation,the potential for esophageal varix rupture and difficulty in obtaining quantitative measures of CO in the absence of tricuspid regurgitation.Mona Rezai Rudnick Lorenzo De Marchi Jeffrey S Plotkin 2015World Journal of Hepatology2015,7,10:15
4How many cases of laryngopharyngeal reflux suspected by laryngoscopy are gastroesophageal reflux disease-related?显示文摘AIM:To investigate the prevalence of gastroesophageal reflux disease(GERD) in patients with a laryngoscopic diagnosis of laryngopharyngeal reflux(LPR).METHODS:Between May 2011 and October 2011,41 consecutive patients with laryngopharyngeal symptoms(LPS) and laryngoscopic diagnosis of LPR were empirically treated with proton pump inhibitors(PPIs) for at least 8 wk,and the therapeutic outcome was assessed through validated questionnaires(GERD impact scale,GIS;visual analogue scale,VAS).LPR diagnosis was performed by ear,nose and throat specialists using the reflux finding score(RFS) and reflux symptom index(RSI).After a 16-d wash-out from PPIs,all patients underwent an upper endoscopy,stationary esophageal manometry,24-h multichannel intraluminal impedance and pH(MII-pH) esophageal monitoring.A positive correlation between LPR diagnosis and GERD was supposed based on the presence of esophagitis(ERD),pathological acid exposure time(AET) in the absence of esophageal erosions(NERD),and a positive correlation between symptoms and refluxes(hypersensitive esophagus,HE).RESULTS:The male/female ratio was 0.52(14/27),the mean age ± SD was 51.5 ± 12.7 years,and the mean body mass index was 25.7 ± 3.4 kg/m 2.All subjects reported one or more LPS.Twenty-five out of 41 patients also had typical GERD symptoms(heartburn and/or regurgitation).The most frequent laryngoscopic findings were posterior laryngeal hyperemia(38/41),linear indentation in the medial edge of the vocal fold(31/41),vocal fold nodules(6/41) and diffuse infraglottic oedema(25/41).The GIS analysis showed that 10/41 patients reported symptom relief with PPI therapy(P < 0.05);conversely,23/41 did not report any clinical improvement.At the same time,the VAS analysis showed a significant reduction in typical GERD symptoms after PPI therapy(P < 0.001).A significant reduction in LPS symptoms.On the other hand,such result was not recorded for LPS.Esophagitis was detected in 2/41 patients,and ineffective esophageal motility was found in 3/41 patients.The MII-pH analysis showed an abnormal AET in 5/41 patients(2 ERD and 3 NERD);11/41 patients had a normal AET and a positive association between symptoms and refluxes(HE),and 25/41 patients had a normal AET and a negative association between symptoms and refluxes(no GERD patients).It is noteworthy that HE patients had a positive association with typical GERD-related symptoms.Gas refluxes were found more frequently in patients with globus(29.7 ± 3.6) and hoarseness(21.5 ± 7.4) than in patients with heartburn or regurgitation(7.8 ± 6.2).Gas refluxes were positively associated with extraesophageal symptoms(P < 0.05).Overall,no differences were found among the three groups of patients in terms of the frequency of laryngeal signs.The proximal reflux was abnormal in patients with ERD/NERD only.The differences observed by means of MII-pH analysis among the three subgroups of patients(ERD/NERD,HE,no GERD) were not demonstrated with the RSI and RFS.Moreover,only the number of gas refluxes was found to have a significant association with the RFS(P = 0.028 andP = 0.026,nominal and numerical correlation,respectively).CONCLUSION:MII-pH analysis confirmed GERD diagnosis in less than 40% of patients with previous diagnosis of LPR,most likely because of the low specificity of the laryngoscopic findings.Nicola de Bortoli Andrea Nacci Edoardo Savarino Irene Martinucci Massimo Bellini Bruno Fattori Linda Ceccarelli Francesco Costa Maria Gloria Mumolo Angelo Ricchiuti Vincenzo Savarino Stefano Berrettini Santino Marchi 2012World Journal of Gastroenterology2012,18,32:11
5Modulation of the matrix redox signaling by mitochondrial Ca^(2+)显示文摘Mitochondria sense,shape and integrate signals,and thus function as central players in cellular signal transduction. Ca2+ waves and redox reactions are two such intracellular signals modulated by mitochondria. Mitochondrial Ca2+ transport is of utmost physio-pathological relevance with a strong impact on metabolism and cell fate. Despite its importance,the molecular nature of the proteins involvedin mitochondrial Ca2+ transport has been revealed only recently. Mitochondrial Ca2+ promotes energy metabolism through the activation of matrix dehydrogenases and downstream stimulation of the respiratory chain. These changes also alter the mitochondrial NAD(P)H/NAD(P)+ ratio,but at the same time will increase reactive oxygen species(ROS) production. Reducing equivalents and ROS are having opposite effects on the mitochondrial redox state,which are hard to dissect. With the recent development of genetically encoded mitochondrial-targeted redoxsensitive sensors,real-time monitoring of matrix thiol redox dynamics has become possible. The discoveries of the molecular nature of mitochondrial transporters of Ca2+ combined with the utilization of the novel redox sensors is shedding light on the complex relation between mitochondrial Ca2+ and redox signals and their impact on cell function. In this review,we describe mitochondrial Ca2+ handling,focusing on a number of newly identified proteins involved in mitochondrial Ca2+ uptake and release. We further discuss our recent findings,revealing how mitochondrial Ca2+ influences the matrix redox state. As a result,mitochondrial Ca2+ is able to modulate the many mitochondrial redox-regulated processes linked to normal physiology and disease.Jaime Santo-Domingo Andreas Wiederkehr Umberto De Marchi 2015World Journal of Biological Chemistry2015,6,4:11
6Overlap of functional heartburn and gastroesophageal reflux disease with irritable bowel syndrome显示文摘Several studies indicate a significant degree of overlap between irritable bowel syndrome(IBS)and gastroesophageal reflux disease(GERD).Likewise,both functional heartburn(FH)and IBS are functional digestive disorders that may occur in the same patients.However,data establishing a solid link between FH and IBS are lacking,mainly because the clinical definition of FH has undergone substantial changes over the years.The available literature on the overlap between GERD or FH and IBS highlights considerable heterogeneity in terms of the criteria and diagnostic procedures used to assess heartburn and IBS.In particular,several epidemiological studies included patients with concomitant IBS and GERD without any attempt to distinguish FH(as defined by the RomeⅢcriteria)from GERD via pathophysiological investigations.Independent of these critical issues,there is preliminary evidence supporting a significantdegree of FH-IBS overlap.This underscores the need for studies based on updated diagnostic criteria and accurate pathophysiological classifications,particularly to distinguish FH from GERD.This distinction would represent an essential starting point to achieving a better understanding of pathophysiology in the subclasses of patients with GERD and FH and properly assessing the different degrees of overlap between IBS and the subcategories of heartburn.The present review article intends to appraise and critically discuss current evidence supporting a possible concomitance of GERD or FH with IBS in the same patients and to highlight the pathophysiological relationships between these disorders.Nicola de Bortoli Irene Martinucci Massimo Bellini Edoardo Savarino Vincenzo Savarino Corrado Blandizzi Santino Marchi 2013World Journal of Gastroenterology2013,19,35:9
7Esophageal testing: What we have so far显示文摘Gastroesophageal reflux disease(GERD) is a common disorder of the gastrointestinal tract. In the last few decades, new technologies have evolved and have been applied to the functional study of the esophagus, allowing for the improvement of our knowledge of the pathophysiology of GERD. High-resolution manometry(HRM) permits greater understanding of the function of the esophagogastric junction and the risks associated with hiatal hernia. Moreover, HRM has been found to be more reproducible and sensitive than conventional water-perfused manometry to detect the presence of transient lower esophageal sphincter relaxation. Esophageal 24-h p H-metry with or without combined impedance is usually performed in patients with negative endoscopy and reflux symptoms who have a poor response to anti-reflux medical therapy to assess esophageal acid exposure and symptom-reflux correlations. In particular, esophageal 24-h impedance and p H monitoring can detect acid and non-acid reflux events. Endo FLIP is a recent technique poorly applied in clinical practice, although it provides a large amount of information about the esophagogastric junction. In the coming years, laryngopharyngeal symptoms could be evaluated with up and coming non-invasive or minimally invasive techniques, such as pepsin detection in saliva or pharyngeal p H-metry. Future studies are required of these techniques to evaluate their diagnostic accuracy and usefulness, although the available data are promising.Nicola de Bortoli Irene Martinucci Lorenzo Bertani Salvatore Russo Riccardo Franchi Manuele Furnari Salvatore Tolone Giorgia Bodini Valeria Bolognesi Massimo Bellini Vincenzo Savarino Santino Marchi Edoardo Vincenzo Savarino 2016World Journal of Gastrointestinal Pathophysiology2016,7,1:8
8Irritable bowel syndrome and chronic constipation: Fact and fiction显示文摘Irritable bowel syndrome(IBS) and functional constipation(FC) are the most common functional gastrointestinal disorders. According to the Rome ⅢCriteria these two disorders should be theoretically separated mainly by the presence of abdominal pain or discomfort relieved by defecation(typical of IBS) and they should be mutually exclusive. However,many gastroenterologists have serious doubts as regards a clear separation. Both IBS-C and FC,often associated with many other functional digestive and non digestive disorders,are responsible for a low quality of life. The impact of the media on patients' perception of these topics is sometimes disruptive,often suggesting a distorted view of pathophysiology,diagnosis and therapy. These messages frequently overlap with previous subjective opinions and are further processed on the basis of the different culture and the previous experience of the constipated patients,often producing odd,useless or even dangerous behaviors. The aim of this review was to analyze the most common patients' beliefs about IBS-C and CC,helping physicians to understand where they should focus their attention when communicating with patients,detecting false opinions and misconceptions and correcting them on the basis of scientific evidence.Massimo Bellini Dario Gambaccini Paolo Usai-Satta Nicola De Bortoli Lorenzo Bertani Santino Marchi Cristina Stasi 2015World Journal of Gastroenterology2015,21,40:4
9Intestinal pseudo-obstruction in inactive systemic lupus erythematosus: An unusual finding显示文摘Chronic intestinal pseudo-obstruction (CIP) is an infre-quent complication of an active systemic lupus erythema-tosus (SLE). We illustrate a case of SLE inactive-related CIP. A 51-year old female with inactive SLE (ECLAM score 2) was hospitalized with postprandial fullness, vomiting, abdominal bloating and abdominal pain. She had had no bowel movements for five days. Plain abdominal X-ray revealed multiple fluid levels and dilated small and large bowel loops with air-fluid levels. Intestinal contrast radiology detected dilated loops. CIP was diagnosed. The patient was treated with prokinetics, octreotide, claritromycin, rifaximin, azathioprine and tegaserod without any clinical improvement. Then methylprednisolone (500 mg iv daily) was started. After the first administration, the patient showed peristaltic movements. A bowel movement was reported after the second administration. A plain abdominal X-ray revealed no air-fluid levels. Steroid therapy was slowly reduced with complete resolution of the symptoms. The patient is still in a good clinical condition. SLE-related CIP is generally reported as a complication of an active disease. In our case, CIP was the only clinical demonstration of the SLE.Giulia Leonardi Nicola de Bortoli Massimo Bellini Maria Gloria Mumolo Francesco Costa Angelo Ricchiuti Stefano Bombardieri Santino Marchi 2010World Journal of Gastrointestinal Pharmacology and Therapeutics2010,1,6:3
10Clinical epidemiology of chronic viral hepatitis B:A Tuscany real-world large-scale cohort study显示文摘AIM To build a regional database of chronic patients to define the clinical epidemiology of hepatitis B virus(HBV)-infected patients in the Tuscan public health care system.METHODS This study used a cross-sectional cohort design. We evaluated chronic viral hepatitis patients with HBV referred to the outpatient services of 16 hospital units. Information in the case report forms included main demographic data, blood chemistry data, viral hepatitis markers, instrumental evaluations, and eligibility for treatment or ongoing therapy and liver transplantation. RESULTS Of 4015 chronic viral hepatitis patients, 1096(27.3%) were HBV infected. The case report form was correctly completed for only 833 patients(64% males, 36% females; mean age 50.1 ± 15.4). Of these HBV-infected patients, 73% were Caucasian, 21% Asian, 4% Central African, 1% North African and 1% American. Stratifying patients by age and nationality, we found that 21.7% of HBV-infected patients were aged < 34 years(only 2.8% were Italian). The most represented routes of transmission were nosocomial/dental procedures(23%), mother-to-child(17%) and sexual transmission(12%). The most represented HBV genotypes were D(72%) and A(14%). Of the patients, 24.7% of patients were HBe Ag positive, and 75.3% were HBe Ag negative. Of the HBV patients 7% were anti-HDV positive. In the whole cohort, 26.9% were cirrhotic(35.8% aged < 45 years), and 47% were eligible for or currently undergoing treatment, of whom 41.9 % were cirrhotic. CONCLUSION Only 27.3% of chronic viral hepatitis patients were HBV infected. Our results provide evidence of HBV infection in people aged < 34 years, especially in the foreign population not protected by vaccination. In our cohort of patients, liver cirrhosis was also found in young adults.Cristina Stasi Caterina Silvestri Roberto Berni Maurizia Rossana Brunetto Anna Linda Zignego Cristina Orsini Stefano Milani Liana Ricciardi Andrea De Luca Pierluigi Blanc Cesira Nencioni Donatella Aquilini Alessandro Bartoloni Giampaolo Bresci Santino Marchi Franco Filipponi Piero Colombatto Paolo Forte Andrea Galli Sauro Luchi Silvia Chigiotti Alessandro Nerli Giampaolo Corti Rodolfo Sacco Paola Carrai Angelo Ricchiuti Massimo Giusti Paolo Almi Andrea Cozzi Silvia Carloppi Giacomo Laffi Fabio Voller Francesco Cipriani 2018World Journal of Hepatology2018,10,5:3
11Pancreaticoduodenectomy in patients ≥ 75 years of age:Are there any differences with other age ranges in oncological and surgical outcomes? Results from a tertiary referral center显示文摘AIM To compare surgical and oncological outcomes after pancreaticoduodenectomy(PD) in patients ≥ 75 years of age with two younger cohorts of patients. METHODS The prospectively maintained Institutional database of pancreatic resection was queried for patients aged ≥ 75 years(late elderly, LE) submitted to PD for any disease from January 2010 to June 2015. We compared clinical, demographic and pathological features and survival outcomes of LE patients with 2 exact matched cohorts of younger patients [≥ 40 to 64 years of age(adults, A) and ≥ 65 to 74 years of age(young elderly, YE)] submitted to PD, according to selected variables. RESULTS The final LE population, as well as the control groups, were made of 96 subjects. Up to 71% of patients was operated on for a periampullary malignancy and pancreatic cancer(PDAC) accounted for 79% of them. Intraoperative data(estimated blood loss and duration of surgery) did not differ among the groups. The overall complication rate was 65.6%, 61.5% and 58.3% for LE, YE and A patients, respectively, P = NS). Reoperation and cardiovascular complications were significantly more frequent in LE than in YE and A groups(P = 0.003 and P = 0.019, respectively). When considering either all malignancies and PDAC only, the three groups did not differ in survival. Considering all benign diseases, the estimated mean survival was 58 and 78 mo for ≥ and < 75 years of age(YE + A groups), respectively(P = 0.012). CONCLUSION Age is not a contraindication for PD. A careful selection of LE patients allows to obtain good surgical and oncological results.Salvatore Paiella Matteo De Pastena Tommaso Pollini Giovanni Zancan Debora Ciprani Giulia De Marchi Luca Landoni Alessandro Esposito Luca Casetti Giuseppe Malleo Giovanni Marchegiani Massimiliano Tuveri Enrico Marrano Laura Maggino Erica Secchettin Deborah Bonamini Claudio Bassi Roberto Salvia 2017World Journal of Gastroenterology2017,23,17:2
12Protein Domains Involved in Assembly in the Endoplasmic Reticulum Promote Vacuolar Delivery when Fused to Secretory GFP, Indicating a Protein Quality Control Pathway for Degradation in the Plant Vacuole显示文摘正确合拢和最新综合的能分泌的蛋白质的汇编被 endoplasmic 蜂窝胃的蛋白质质量控制系统监视(嗯) 。通过和象有约束力的蛋白质(BiP ) 和另外的合拢的助手那样的女伴的相互作用,质量控制赞成为降级有缺陷者蛋白质的高效的合拢和种类。为在酵母,植物,和动物识别的质量控制降级的一条主要线路被 ubiquitin/proteasome 系统,而是选择被 retrotranslocation 从 ER 组成到 cytosol 和随后的处理包含液泡的线路在酵母被识别了。在这研究,我们学习了 sGFP418 的命运,在 GFP 和涉及 phaseolin 的正确汇编并且在 unassembled 子单元的 BiP 识别的 vacuolar 蛋白质 phaseolin 的域的一种能分泌的形式之间的熔化。我们证明尽管有缺乏排序信号的 phaseolin vacuolar, sGFP418 被送到液泡并且碎裂,在被能分泌的交通禁止者 brefeldin A 禁止的一个过程。而且,在 GFP 之间的熔化和涉及玉米朊聚合的玉米存储蛋白质玉米朊的一个领域也经历类似于 sGFP418 的 translational 以后破碎。这些结果证明有通常涉及 oligomerization 的永久地暴露的序列的有缺点的能分泌的蛋白质能被能分泌的交通送到液泡。这强烈建议排序奉献给有缺点的能分泌的蛋白质的处理的机制的植物 vacuolar 的存在。Ombretta Foresti Francesca De Marchis Maddalena de Virgilio Eva M. Klein Sergio Arcioni Michele Bellucci Alessandro Vitale 2008Molecular Plant2008,1,6:2
13Effects of Composite β- and κ-Casein Genotypes on Milk Coagulation, Quality, and Yield Traits in Italian Holstein Cows显示文摘A. Comin M. Cassandro S. Chessa M. Ojala R. Dal Zotto M. De Marchi P. Carnier L. Gallo G. Pagnacco G. Bittante 2008Journal of Dairy Science2008,,10:2
14Evaluation of continu- ous aspiration of subglottic secretion in an in vivo study显示文摘Berra L De Marchi L Panigada M 2004Crit Care Med2004,32,:1
15Proligerative inflammatoryatrophy of the prostate:implications for prostatic carcinogenesis显示文摘De Marzo AM Marchi VL Epstein JI 1999Am J Pathol1999,155,6:1
16Saggio di teoria de funzionamente degli stramazzi laterali 显示文摘De Marchi G 1934L''Energia Elettrica1934,11,11:1
17Impact of increased visceral and cardiac fat on cardiometabolic risk and disease显示文摘Sironi A M Petz R De Marchi D 2012Diabet Med2012,29,5:1
18Patient-ventilator interaction during pressure support ventilation and neurally adjusted ventilatory assist显示文摘Spahija J de Marchie M Albert M 0,,:1
19Factors affecting variation of different measures of cheese yield and milk nutrient recovery from an individual model cheese-manufacturing process显示文摘CIPOLAT-GOTET C CECCHINATO A de MARCHI M 2013Journal of Dairy Science2013,96,12:1
20Optimization of the extraction conditions of the volatile compounds from chili peppers by headspace solid phase micro- extraction显示文摘Bogusz Junior S de Marchi Tavares de Melo A Zini C A 2011Journal of Chromatography A2011,1218,21:1
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