Levine, Marc S. Double contrast gastrointestinal radiology / Marc S. Levine, Stephen E. Rubesin, Igor Laufer - 3rd ed. - Philadelphia : W. B. Saunders, 2000 - 536 p. : ill. ; 29 cm. ISBN: 0721682111 RM662.64 LCCN: 99-29019 Subjects--Topical Terms: Gastrointestinal system--RadiographyContrast media National Library of Medicine Call No.: WI141