schiller, K. F. R. A colour atlas of gastrointestinal endoscopy / by Schiller, K. F. R. ... [et al.] - 240 p. : ill. ; 28 cm. Subjects--Topical Terms: Endoscope and EndoscopyGastrointestinal system National Library of Medicine Call No.: WI141 / .S3345c 1986 9HUKM