1. Department of Cardiopulmonary Bypass; State Key Laboratory of Cardiovascular Medicine, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College; Beijing China
2. Department of Cardiac Surgery; Lanzhou University Second Hospital; Lanzhou China
3. Department of Cardiac Surgery; State Key Laboratory of Cardiovascular Medicine, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College; Beijing China