[Guo, Yue; Zhou, Hou-De] Cent S Univ, Dept Endocrinol & Metab, Xiangya Hosp 2, Renmin Middle Rd, Changsha 410011, Hunan, Peoples R China.
[Guo, Yue; Bu, Yan-Hong; Feng, Yun-Zhi] Cent S Univ, Xiangya Hosp 2, Dept Stomatol, Renmin Middle Rd, Changsha 410011, Hunan, Peoples R China.
[Tian, Li-Li] Baodi Dist Peoples Hosp Tianjin City, Tianjin, Peoples R China.
[Zhang, Feng-Yi] Hunan Univ Chinese Med, Dept Stomatol, Changsha, Hunan, Peoples R China.