Blood component therapy.
D000208:Acute Disease; D001772:Blood Cell Count; D001792:Blood Platelets / Q000276:immunology / Q000502:physiology; D001803:Blood Transfusion; D017707:Erythrocyte Transfusion; D006098:Granulocytes / Q000276:immunology / Q000637:transplantation; D006801:Humans; D007938:Leukemia / Q000628:therapy*; D017713:Platelet Transfusion