Zhang X F, Hu D Y
Department of Clinical Epidemiology and Biostatistics, Beijing Tsinghua Chunggung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China.
Heart Center, Peking University People's Hospital, Beijing 100044, China.
Zhonghua Nei Ke Za Zhi. 2020 Apr 1;59(4):259-263. doi: 10.3760/cma.j.cn112138-20200120-00040.