title: X-ray examination of the upper gastrointestinal tract. A problem in the provincial hospitals.
mesh_terms: D004064:Digestive System / Q000000981:diagnostic imaging*; D004386:Duodenum / Q000000981:diagnostic imaging; D004947:Esophagus / Q000000981:diagnostic imaging; D006769:Hospitals, General; D006801:Humans; D011859:Radiography; D011871:Radiology; D013270:Stomach / Q000000981:diagnostic imaging; D013785:Thailand; D000078329:Workforce