[Xiong, Dan] Hunan Univ Chinese Med, Hosp 1, Dept Nephrol, Changsha 410021, Hunan, Peoples R China.
[Hu, W; Hu, Wei] Hunan Univ Chinese Med, Hosp 1, Dept Endocrinol, Changsha 410021, Hunan, Peoples R China.
[Han, Xiaofang] Lanzhou Univ, Hosp 1, Dept Infect Dis, Lanzhou 730099, Gansu, Peoples R China.
[Cai, Yahong] Hunan Univ Chinese Med, Hosp 1, Dept Chron Dis Management, Changsha 410021, Hunan, Peoples R China.