Blackstone, Michael O. Endoscopic interpretation : normal and pathologic appearances of the gastrointestinal tract / by Michael O. Blackstone. - New York : Raven Press, 1984. - xv, 575 pages. : illustrations. (some col.) ; 29 cm. Includes bibliographical references and index. ISBN: 0890047898 : $147.34 LCCN: 80005832 Subjects--Topical Terms: Endoscopy.Gastrointestinal system--Diseases--Diagnosis.Endoscopy.Gastrointestinal Diseases--diagnosis. LC Class. No.: RC804.E6 / B63 1984