Influence of preoperative optimization of Hb level on perioperative blood transfusion and postoperative outcome in patients with preoperative anemia Journal title: Chinese Journal of Blood Transfusion Authors: Jie YANG, Cuihua TAO, Litao ZHANG, Liyuan JIANG, Xin LIAO, Jiangshang SUN, Jiawen Wang, Yingsen HU Subject(s): Hematology