title: Gastroduodenal visualization. Fiberoptic esophagogastroduodenoscopy.
mesh_terms: D000328:Adult; D000368:Aged; D004386:Duodenum; D004724:Endoscopy; D004945:Esophagoscopy; D005260:Female; D005336:Fiber Optic Technology; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged