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Zeitschrift Fur Gastroenterologie|March 1, 1976
[Gastrointestinal hormones and lower esophageal sphincter]R Siewert
Langenbecks Archiv Fur Chirurgie|November 1, 1978
[Reflux esophagitis: surgical indications (author's transl)]R Siewert
Journal of Pharmaceutical and Biomedical Analysis|March 28, 2006
Validation of a levofloxacin HPLC assay in plasma and dialysate for pharmacokinetic studiesS Siewert
Current Problems in Diagnostic Radiology|June 27, 2017
The Joint Commission Ever-Readiness: Understanding Tracer MethodologyBettina Siewert
European Journal of Drug Metabolism and Pharmacokinetics|January 1, 1993
Perspectives of in vitro dissolution tests in establishing in vivo/in vitro correlationsM Siewert
Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus|October 21, 1998
Bronchogenic cyst of the esophagus with high tumor marker levels--a case report and review of the literatureK Ott, A Sendler, C D Heidecke, et al.
Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus|April 4, 2001
Fibrovascular esophageal polyp as a diagnostic challengeC Schuhmacher, K Becker, H J Dittler, et al.
Environmental Science & Technology|September 20, 2008
Analysis and sorption of psychoactive drugs onto sedimentKaroline Stein, Maria Ramil, Guido Fink, et al.
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