1 Department of Cardiology and Cardiovascular Research, Institute, General Hospital of Northern Theater Command, 83 Wenhua Road, Liaoning, 110016, Shenyang, China.
2 Department of Cardiology and Cardiovascular Research, Institute, General Hospital of Northern Theater Command, 83 Wenhua Road, Liaoning, 110016, Shenyang, China. wxiaozeng@163.com.