Early diagnosis in massive gastrointestinal hemorrhage.
D042241:Early Diagnosis; D004932:Esophageal and Gastric Varices; D004947:Esophagus; D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage; D014648:Varicose Veins
ESOPHAGUS/varix; GASTROINTESTINAL SYSTEM/hemorrhage