1. Shaanxi Provincial Key Laboratory of Infection and Immunity Diseases, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
2. Department of Cardiology, Baoji Traditional Chinese Medicine Hospital, Baoji, Shaanxi 721000, P.R. China
3. Department of Cardiac Surgery, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
4. Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
5. Shaanxi Key Laboratory of Integrated Traditional and Western Medicine for Prevention and Treatment of Cardiovascular Diseases, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi 712046, P.R. China
6. Department of Cardiology, Guangshui Traditional Chinese Medicine Hospital of Hubei Province, Guangshui, Hubei 432700, P.R. China