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Der Gastroenterologe : Zeitschrift Fur Gastroenterologie Und Hepatologie|November 10, 2020
[Colon cancer screening in times of COVID-19]Jürgen F RiemannSchweizerische Medizinische Wochenschrift|June 23, 1999
[Consensus conferences and guidelines in gastroenterology: a valid approach]J F RiemannDigestive Diseases (Basel, Switzerland)|November 23, 2011
Colonoscopy screening: status in EuropeJ F RiemannStrahlentherapie Und Onkologie : Organ Der Deutschen Rontgengesellschaft ... [Et Al]|November 1, 1995
[The secondary prevention of colorectal carcinoma by polyp removal]J F RiemannActa Hepato-Gastroenterologica|April 1, 1977
Further electron microscopic evidence of virus-like particles in Crohn's diseaseJ F RiemannZeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete|October 15, 1989
[Endoscopic treatment of gallstones: new technics]J F RiemannFortschritte Der Medizin|February 24, 1977
[Diagnosis of cancer and early detection. Clinical methods]J F RiemannFortschritte Der Medizin|November 16, 1978
[Prevention in general practice: what is dangerous for liver cells?]J F RiemannPageof 38