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Langenbecks Archiv Fur Chirurgie|January 1, 1981
[Endoscopy of esophageal cancer (author's transl)]M Classen, J PhillipScandinavian Journal of Gastroenterology. Supplement|January 1, 1984
Endoscopic biliary drainageM Classen, F HagenmüllerEndoscopy|November 1, 1991
A new pull-through trocar technique for percutaneous operative endoscopyE Frimberger, M ClassenScandinavian Journal of Gastroenterology. Supplement|January 1, 1989
Omeprazole in the acute treatment of gastric ulcerW Schepp, M ClassenZeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete|August 15, 1979
[Therapeutic endoscopy in the gastrointestinal tract]M Classen, D WurbsGastrointestinal Endoscopy|May 1, 1989
Endoscopic ultrasonography in esophageal diseasesH Dancygier, M ClassenBildgebung = Imaging|January 1, 1987
[Endoscopy in the diagnosis and treatment of acute obstructive pancreatitis]H Neuhaus, M ClassenZeitschrift Fur Gastroenterologie|December 1, 1988
Thr28, Nle31 CCK-9--an useful CCK analogue in stimulation tests of pancreatic exocrine functionV Schusdziarra, M ClassenThe American Journal of Gastroenterology|October 29, 2000
The role of diet and lifestyle measures in the pathogenesis and treatment of gastroesophageal reflux diseaseA Meining, M ClassenLangenbecks Archiv Fur Chirurgie|November 1, 1977
[Retrograde endoscopic diagnosis and therapy in diseases of the bile papillae and the bile ducts (author's transl)]M Classen, D WurbsPageof 40