1. Teaching and Research Section of Internal Medicine, Hebei Medical University, No. 361, Zhongshan East Road, Hebei, 050017, Shijiazhuang, P.R. China
2. Department of Cardiology, Hebei General Hospital, No. 348, Heping West Road, Hebei, Shijiazhuang, 050051, P.R. China
3. Division of Medical Service, Hebei General Hospital, No. 348, Heping West Road, Hebei, Shijiazhuang, 050051, P.R. China
4. Department of Rheumatology and Immunology, Hebei General Hospital, No. 348, Heping West Road, Hebei, Shijiazhuang, 050051, P.R. China
5. Department of Cardiology Center, Hebei General Hospital, No. 348, Heping West Road, Hebei, 050051, Shijiazhuang, P.R. China