[Ou, Jihong; Duan, Yingjie; Yang, Bo; Liu, Peng; Xiang, Yazhou; Peng, Zhong; He, Zhangxiu] Univ South China, Affiliated Hosp 1, Dept Nephrol, 69 Chuanshan Rd, Hengyang 421000, Hunan, Peoples R China.
[Peng, Zhong] Univ South China, Affiliated Hosp 1, Dept Gastroenterol, Hengyang, Hunan, Peoples R China.
[Huang, Hong] Univ South China, Affiliated Hosp 1, Inst Clin Med, Hengyang, Hunan, Peoples R China.
[Peng, Zhiyong] Univ South China, Affiliated Hosp 2, Dept Cardiol, Hengyang, Hunan, Peoples R China.
[Zhang, Yong] Hua Yuan Cty Peoples Hosp, Tujia Miao Autonomous Prefecture Xiangxi, Dept Nephrol, Xiangxi, Hunan, Peoples R China.