Blood transfusion: less is more?
D001771:Blood Banks; D016913:Blood Component Transfusion / Q000009:adverse effects / Q000379:methods; D001803:Blood Transfusion / Q000379:methods*; D002986:Clinical Trials as Topic; D003422:Critical Care / Q000592:standards*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D018570:Risk Assessment; D013048:Specimen Handling; D065227:Transfusion Reaction