Clinical research on the prognosis of restrictive versus liberal strategy for blood transfusion in elderly patients during operation
Fu Xin, Xu Yao, Ma Chunling, Li Wankui, Deng Kaiqing
International Medicine and Health Guidance News . 2022, (10): 1394 -1398 .  DOI: 10.3760/cma.j.issn.1007-1245.2022.10.015