1 Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 20072, China.
2 National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China.
3 National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China. Electronic address: liuyueheart@hotmail.com.