Gastrointestinal: iatrogenic gastrointestinal bleeding.
D005753:Gastric Mucosa / Q000293:injuries*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology* / Q000628:therapy; D005773:Gastroscopy / Q000009:adverse effects*; D006801:Humans; D007049:Iatrogenic Disease; D008551:Melena / Q000209:etiology* / Q000628:therapy; D015911:Sclerotherapy / Q000379:methods; D016896:Treatment Outcome