1. Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences
2. Department of Pulmonary Vascular and General Medicine, Fuwai Yunnan Cardiovascular Hospital
3. Statistics Medical Research and Biometrics Center, Fuwai Hospital, Chinese Academy of Medical Sciences
4. Department of Cardiology, the First Hospital of Qinhuangdao City
5. Department of Cardiology, the Central Hospital of Xinxiang