[Wang, Ying; Feng, Shu-Jun] Univ South China, Peoples Hosp Chenzhou 1, Dept Cardiol, Chenzhou, Hunan, Peoples R China.
[Kuang, Ze-Min; Cheng, Wen-Li] Capital Med Univ, Beijing Anzhen Hosp, Dept Hypertens, Beijing, Peoples R China.
[Jiang, Long] Nanchang Univ, Affiliated Hosp 2, Inst Cardiovasc Dis, Dept Cardiol, Nanchang, Jiangxi, Peoples R China.
[Ji, Xiao-Yun; Chen, Qiu-Xian] Hisun Pfizer Pharmaceut Co Ltd, Dept Med Affairs, Shanghai, Peoples R China.
[Hu, Hong-Juan] Univ South China, Sch Nursing, Teaching & Res Sect Community Nursing, Hengyang, Hunan, Peoples R China.