[Luo, Min; Cai, Yongqin; Tang, Lixin; Lei, Xin; Wang, Jinyuan; Liu, Jiang; Lei, Xiaocan; Ma, Duo; Zhao, Leilei; Long, Shuanglian] Univ South China, Clin Anat & Reprod Med Applicat Inst, Hengyang Med Sch, Dept Histol & Embryol, Hengyang 421001, Peoples R China.
[Wang, Junli; Liao, Biyun] Youjiang Med Univ Nationalities, Reprod Med Ctr, Affiliated Hosp, Baise 533000, Peoples R China.
[Yang, Fenglian] Youjiang Med Univ Nationalities, Key Lab Environm Pollut & Hlth Risk Assessment, Baise 533000, Peoples R China.