Emergency endoscopy in the diagnosis of upper G.I. haemorrhage in patients with portal hypertension.
D004724:Endoscopy / Q000379:methods; D005336:Fiber Optic Technology; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications*; D014647:Varicose Ulcer / Q000150:complications