[Luo, Yan-Hua; Zhou, Li; Li, Man -Qin] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Metab & Endocrinol, Hengyang 421001, Hunan, Peoples R China.
[Xie, Li] Univ South China, Affiliated Hosp 1, Pediat Med Ctr, Hengyang Med Sch, Hengyang 421001, Hunan, Peoples R China.
[Li, Jiao-Yang] Wuhan Univ, Sch Publ Hlth, Dept Prevent Med, Wuhan 430071, Hubei, Peoples R China.
[Xie, Yuan] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Radiol, Hengyang 421001, Hunan, Peoples R China.