Halpert, Robert D. Gastrointestinal radiology : the requisites / Robert D. Halpert, Peter J. Feczko. - 2nd ed. - St. Louis, Mo : Mosby , 1999 - 334 p. : ill. ; 29 cm. ISBN: 0815143702 RM301.28 Subjects--Topical Terms: Gastrointestinal system--RadiographyDiagnostic imaging National Library of Medicine Call No.: WI141