Affiliation: | aDepartment of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing China;bDepartment of Respiratory, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing China;cDepartment of Cardiac Surgery, Beijing Daxin Hospital, Capital Medical University, Beijing China |