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Endoscopy|September 1, 1990
Complications of diagnostic gastrointestinal endoscopyR Hart, M Classen
Deutsche Medizinische Wochenschrift (1946)|November 11, 1988
[Device for a single-operator resuscitation]E Frimberger, M Classen
Bildgebung = Imaging|January 1, 1991
[Indications and value of endosonography of the upper gastrointestinal tract]T Rösch, M Classen
Gastrointestinal Endoscopy|May 1, 1989
Endoscopic ultrasonography in esophageal diseasesH Dancygier, M Classen
Bildgebung = Imaging|January 1, 1987
[Endoscopy in the diagnosis and treatment of acute obstructive pancreatitis]H Neuhaus, M Classen
Zeitschrift Fur Gastroenterologie|December 1, 1988
Thr28, Nle31 CCK-9--an useful CCK analogue in stimulation tests of pancreatic exocrine functionV Schusdziarra, M Classen
The 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 Classen
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