7Pabla L,Watkins E,Doughty HA. A study of blood loss from phlebotomy in renal medical inpatients[J].Transfusion Medicine,2009,(06):309-314.
8Vincent JL,Baron JF,Reinhart K. ABC(Anemia and blood transfusion in critical Care)investigators.Anemia and blood transfusion in critically ill patients[J].Journal of the American Medical Association,2002,(12):1499-1507.