Endoscopic vignettes.
D004938:Esophageal Neoplasms / Q000601:surgery; D004945:Esophagoscopy; D005547:Foreign Bodies; D013271:Gastric Dilatation / Q000209:etiology; D005773:Gastroscopy / Q000009:adverse effects*; D006801:Humans; D007049:Iatrogenic Disease / Q000209:etiology; D007082:Ileum; D007441:Intubation, Gastrointestinal; D008297:Male; D012007:Rectum; D012812:Sigmoidoscopy; D014925:Wit and Humor as Topic