TY - BOOK AU - Laufer,Igor AU - Levine,Marc S. AU - Rubesin,Stephen E. TI - Double contrast gastrointestinal radiology SN - 0721657346 AV - RC804.R6 L38 2000 U1 - 615.8 LAU 22 PY - 1979/// CY - Philadelphia PB - Saunders KW - Gastrointestinal system KW - Radiography KW - Radiography, Double-contrast KW - Diseases KW - Diagnosis KW - Digestive System KW - radiography KW - Contrast Media KW - Medicine N1 - Includes bibliographical references and index ER -