1. Department of Geraeology, Affiliated Hospital of Nantong University, Nantong, P.R. China.
2. Department of Anesthesiology, First People's Hospital of Nantong and Second Affiliated Hospital of Nantong University, Nantong, P.R. China.
3. Department of Cardiology, Affiliated Hospital of Nantong University, Nantong, P.R. China.
4. Institute of Cardiovascular Research, Nantong University, Nantong, P.R. China.
5. Department of Intensive Care Unit, Xinghua People's Hospital, Xinghua, P.R. China.
6. Department of Cardiology, Ningxia People's Hospital, Yinchuan, P.R. China.