SURGICAL MANAGEMENT OF GASTROINTESTINAL HEMORRHAGE FROM AN UNDETERMINED SOURCE.
D005743:Gastrectomy; D006471:Gastrointestinal Hemorrhage; D006470:Hemorrhage; D006801:Humans; D007813:Laparotomy; D013223:Statistics as Topic
GASTRECTOMY; HEMORRHAGE, GASTROINTESTINAL; LAPAROTOMY; STATISTICS