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Acta Hepato-Gastroenterologica|April 1, 1977
Further electron microscopic evidence of virus-like particles in Crohn's diseaseJ F Riemann
Fortschritte Der Medizin|February 5, 1981
[Differentiated therapy in Crohn's disease]J F Riemann
Zeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete|October 15, 1989
[Endoscopic treatment of gallstones: new technics]J F Riemann
Fortschritte Der Medizin|February 24, 1977
[Diagnosis of cancer and early detection. Clinical methods]J F Riemann
Endoscopy|January 3, 2003
Diagnostic laparoscopyJ F Riemann
Fortschritte Der Medizin|November 16, 1978
[Prevention in general practice: what is dangerous for liver cells?]J F Riemann
Fortschritte Der Medizin|March 30, 1978
[Malignant tumors of the gastrointestinal tract and their early diagnosis]J F Riemann
Fortschritte Der Medizin|August 25, 1977
[Acute pancreatitis: diagnosis and therapy in general practice]J F Riemann
Fortschritte Der Medizin|May 28, 1981
[Internist therapy of cholelithiasis]J F Riemann
Der Radiologe|June 15, 2019
[When are contrast agents really needed? : Cross-sectional imaging with computed tomography and magnetic resonance imaging]G Layer
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