Institution: | 1.Institute of Cardiology, The Second Hospital, Shanxi Medical University, Taiyuan 030001, China;2.Medical School of Xishui, Xishui 436200, China;3.Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China. E-mail: q8375zj@yahoo.com.cn |