na INLIS000000000043180 20260410022414 0010-0617002072 260410 0 ind Bockus Gastroenterology 4 W.B. Saunders Company, 1985 ix, 2092 hlm.: ilus. ; 26 cm. 0721617808 616.3 Boc III-1 616.3 GASTROENTEROLOGY 166791212 166791212