Silen, William, 1927- Cope's early diagnosis of the acute abdomen Early diagnosis of the acute abdomen - 20th ed. / revised by William Silen - New York : Oxford University Press, 2000 - xiv, 296 p . : ill. ; 21 cm. previous ed. : 1996 ISBN: 0195136799 (pbk.) Subjects--Topical Terms: Abdomen, Acute--Diagnosis National Library of Medicine Call No.: WI900