NIH consensus statement on perioperative red cell transfusions.
D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission*; D000740:Anemia / Q000628:therapy*; D001803:Blood Transfusion; D017707:Erythrocyte Transfusion; D006801:Humans; D011183:Postoperative Complications / Q000628:therapy*; D012307:Risk Factors; D014481:United States