title: [Endoscopic findings in 202 patients without roentgenologically demonstrable lesions of the esophagus, stomach and duodenum].
mesh_terms: D004378:Duodenal Diseases / Q000175:diagnosis; D004724:Endoscopy; D004935:Esophageal Diseases / Q000175:diagnosis; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D011859:Radiography; D013272:Stomach Diseases / Q000175:diagnosis
vernacular_title: Endoscopisch bevindingen bij 202 patiënten zonder röntgenologisch aantoonbare afwijkingen van oesophagus, maag en duodenum.