1. Department of Cardio-Pulmonary Circulation; Shanghai Pulmonary Hospital, Tongji University School of Medicine; Shanghai 200433 China
2. Department of Cardiology; Yantai Yu-Huangding Hospital, Medical College of Qingdao University; Yantai 264000 China
3. Department of Pulmonary Function Test; Shanghai Pulmonary Hospital, Tongji University School of Medicine; Shanghai 200433 China
4. Department of Transfusion Medicine; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Rd; Shanghai 200233 China