Halpert, Robert D., M.D. Gastrointestinal radiology : the requisites / (by) Robert D. Halpert, Philip Goodman. - St. Louis : Mosby , 1993 - 258 p. : ill. 27 cm. ISBN: 0801663822 LCCN: 92-49533 Subjects--Topical Terms: Gastrointestinal system--Radiography National Library of Medicine Call No.: WI 100