Mortality factors of gastrectomy or medical treatment in upper gastrointestinal bleeding.
D001741:Black or African American; D005007:Ethnology; D005743:Gastrectomy / Q000009:adverse effects*; D006471:Gastrointestinal Hemorrhage / Q000150:complications*; D006801:Humans; D009026:Mortality; D011183:Postoperative Complications; D012189:Retrospective Studies; D012723:Sex; D044465:White People