1. Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
2. Department of Cardiovascular Biology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, Hubei 445000, P.R. China
3. Medical School of Enshi Polytechnic, Enshi, Hubei 445000, P.R. China