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Der Internist|November 25, 2003
[The importance of rectoscopy and colonoscopy in Internal Medicine]A Eickhoff, J F RiemannFortschritte Der Medizin|January 26, 1984
[Low-sugar and fiber-rich diet in Crohn disease]J F Riemann, S KolbScandinavian Journal of Gastroenterology. Supplement|January 1, 1982
Ultrastructural changes in the gut autonomic nervous system following laxative abuse and in other conditionsJ F Riemann, H SchmidtProceedings of the National Academy of Sciences of the United States of America|October 1, 1983
Comparative localization of acetylcholinesterase and pseudocholinesterase during morphogenesis of the chicken brainP G LayerCellular and Molecular Neurobiology|February 1, 1991
Cholinesterases during development of the avian nervous systemP G LayerChemico-Biological Interactions|June 26, 2025
An ancient cholinergic cell triad of a light-sensitive, a pigmented and a glial cell could regulate stemnessPaul G LayerThe American Journal of Gastroenterology|October 1, 1987
Incidence of bacteremia after endoscopic laser treatment of stenosing processes in the upper gastrointestinal tractB Kohler, J F RiemannEndoscopy|March 1, 1987
Obstructive jaundice due to an intraductal melanoma metastasisB Kohler, J F RiemannDeutsche Medizinische Wochenschrift (1946)|October 4, 2013
[Early detection of bowel cancer in occupational surveillance examinations: switching from a guaiak-based to an immunochemical fecal occult blood test]S Webendörfer, J F RiemannPageof 53