TY - BOOK AU - Gammill,Stephen Lane TI - A programmed introduction to upper gastrointestinal radiology SN - 0316302945 AV - RC804 .R6 G4 PY - 1977/// CY - Boston PB - Little Brown KW - Stomach KW - Radiography KW - Programmed instruction KW - Duodenum KW - Esophagus N1 - Includes bibliographies and index ER -