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Der Internist|April 8, 2006
[The management of bleeding ulcers]U Weickert, J F Riemann
Deutsche Medizinische Wochenschrift (1946)|February 27, 2009
[Pancreas duct stenosis of unknown origin]F Schorr, J F Riemann
Zeitschrift Fur Gastroenterologie|August 31, 2000
[Diagnostic and therapeutic enteroscopy. Its current status]C Benz, J F Riemann
Kongressband. Deutsche Gesellschaft Fur Chirurgie. Kongress|April 23, 2003
[Colonic carcinoma--state of the art. Primary and secondary prevention]D Hartmann, J F Riemann
Kongressband. Deutsche Gesellschaft Fur Chirurgie. Kongress|April 23, 2003
[Adenoma of Vater's ampulla: what is the value of endoscopic diagnosis and therapy?]D Hartmann, J F Riemann
Fortschritte Der Medizin|February 23, 1984
[Therapeutic strategy in acute pancreatitis (I). Endoscopic possibilities]J F Riemann, G Lux
European Journal of Gastroenterology & Hepatology|June 18, 2004
cagA-positive Helicobacter pylori strains and gastro-oesophageal reflux disease: still puzzling?R Jakobs, J F Riemann
Alimentary Pharmacology & Therapeutics|April 1, 1991
Cimetidine suspension in patients with stage 0 gastro-oesophageal reflux diseaseJ F Riemann, W Höbel
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