[Sun, Gui-Xiang; Xia, Shuai-Shuai; Xia, Yu] Hunan Univ Chinese Med, Prov Key Lab TCM Diagnost, 300 Xueshi Rd, Changsha 410208, Hunan, Peoples R China.
[Sun, Gui-Xiang; Xia, Yu] Hunan Univ Chinese Med, Inst Chinese Med Diag, Changsha 410208, Hunan, Peoples R China.
[Yang, Zheng-Wang; Xia, Yu] Hunan Univ Chinese Med, Hosp 1, Dept Obstet & Gynecol, Changsha 410007, Hunan, Peoples R China.
[Zhao, Yu-Dong] Chengdu Univ Tradit Chinese Med, Sch Clin Med, Chengdu 610075, Peoples R China.