Foreign bodies in the upper GI tract.
D000328:Adult; D004106:Dilatation / Q000379:methods; D004945:Esophagoscopy / Q000379:methods; D004947:Esophagus; D005336:Fiber Optic Technology; D005547:Foreign Bodies / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D008297:Male