Follow-up observations on patients with upper gastrointestinal hemorrhage of undetermined etiology.
D005500:Follow-Up Studies; D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage; D006801:Humans; D007580:Jejunal Neoplasms; D007583:Jejunum; D009369:Neoplasms; D017253:Neurofibromatoses / Q000150:complications*; D009456:Neurofibromatosis 1
GASTROINTESTINAL SYSTEM/hemorrhage; JEJUNUM/neoplasms; NEUROFIBROMATOSIS/complications