[Emergency endoscopies in hemorrhage from the gastrointestinal tract--the diagnostic problems and management].
D004630:Emergencies; D004724:Endoscopy; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D006801:Humans; D013997:Time Factors
Speshni endoskopii pri khemoragii ot gastrointestinalniia trakt-diagnostichni problemi i povedenie.