International Congress on Diagnosis and Treatment of Upper Gastrointestinal Tumors (1980 : Mainz, Germany)

Diagnosis and treatment of upper gastrointestinal tumors : proceedings of an International Congress, Mainz, September 9-11, 1980 / editors, M. Friedman, M. Ogawa, D. Kisner ; associate editors, D. Bokelman, G. Nagel, H.W. Schreiber.