Fifty years of roentgen rays in gastroenterology.
CASE
J T
JT
D005762:Gastroenterology; D041981:Gastrointestinal Tract / Q000000981:diagnostic imaging*; D011859:Radiography; D014965:X-Rays / Q000266:history
GASTROINTESTINAL TRACT/roentgenography; ROENTGEN RAYS/history