[He, Pingping] Univ South China, Inst Cardiovasc Dis, Coll Med, Dept Physiol, Hengyang, Peoples R China.^[Zhang, Tao;Liu, Jun] Univ South China, Affiliated Hosp 2, Dept Urol, Hengyang, Peoples R China.^[Chen, Xin;Li, E.] Hunan Tradit Chinese Med Coll, Zhuzhou, Peoples R China.^[Wang, Bo;Liao, Huiying;Fu, Wan;Peng, Zhe] Univ South China, Affiliated Hosp 1, Hengyang, Peoples R China.^[He, Pingping] Univ S China, Sch Nursing, Hengyang, Peoples R China.