6Tinmouth A T, Mclntyre L A, Fowler R A. Blood con- servation strategies to reduce the need for red blood cell transfusion in critically ill patients[J]. CMAJ, 2008,178 (1) :49-57.
7Mukhopadhyay A, Yip H S, Prabhuswamy D, et al. The use of a blood conservation device to reduce red blood cell transfusion requirements: a before and after study[J]. Crit Care, 2010,14(1): 87-97.