Epidemiology of red blood cell utilization.
Vamvakas
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Blood Transfusion Service, Massachusetts General Hospital, Boston 02114, USA.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001804:Blood Transfusion, Autologous; D004194:Disease; D017707:Erythrocyte Transfusion / Q000706:statistics & numerical data*; D006801:Humans; D008875:Middle Aged; D012737:Sex Factors; D014481:United States