[1] Shandong Univ, Cheeloo Coll Med, Ctr Reprod Med, 157 Jingliu Rd, Jinan 250021, Shandong, Peoples R China
[2] NIDCR, Mucosal Immunol Sect, NIH, 30 Convent Dr, Bethesda, MD 20892 USA
[3] Shandong Univ, Natl Res Ctr Assisted Reprod Technol & Reprod Gen, Jinan, Shandong, Peoples R China
[4] Shandong Univ, Minist Educ, Key Lab Reprod Endocrinol, Jinan, Shandong, Peoples R China
[5] Shanghai Key Lab Assisted Reprod & Reprod Genet, Shanghai, Peoples R China
[6] Shanghai Jiao Tong Univ, Ctr Reprod Med, Ren Ji Hosp, Sch Med, Shanghai, Peoples R China