[1] Shandong Univ, Shandong Prov Hosp, Ctr Reprod Med, Jinan 250100, Shandong, Peoples R China
[2] Shandong Key Lab Reprod Med, Jinan, Shandong, Peoples R China
[3] Fudan Univ, Inst Biomed Sci, Shanghai 200433, Peoples R China
[4] Shanghai Jiao Tong Univ, Minist Educ, Key Lab Genet Dev & Neuropsychiat Disorders, Bio X Ctr, Shanghai 200030, Peoples R China
[5] Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Nutr Sci, Shanghai, Peoples R China
[6] Ningxia Med Univ, Affiliated Hosp, Ningxia, Peoples R China
[7] Nanjing Med Univ, Affiliated Hosp 1, Nanjing, Jiangsu, Peoples R China
[8] Sun Yat Sen Univ, Affiliated Hosp 6, Guangzhou, Guangdong, Peoples R China
[9] Shanghai Jiao Tong Univ, Renji Hosp, Shanghai 200030, Peoples R China
[10] Wenzhou Med Coll, Affiliated Hosp 1, Wenzhou, Zhejiang, Peoples R China
[11] Zhengzhou Univ, Affiliated Hosp 1, Zhengzhou, Henan, Peoples R China
[12] Maternal & Child Hlth Hosp Guangxi, Guangxi, Peoples R China
[13] China Med Univ, Shengjing Hosp, Liaoning, Peoples R China
[14] Qingdao Women & Children Med Healthcare Ctr, Qingdao, Shandong, Peoples R China
[15] Affiliated Hosp, Weifang Med Coll, Weifang, Shandong, Peoples R China
[16] Linyi Peoples Hosp, Linyi, Shandong, Peoples R China
[17] Shandong Jingning First Peoples Hosp, Jingning, Shandong, Peoples R China
[18] Qingdao Univ, Coll Med, Affiliated Hosp, Qingdao, Shandong, Peoples R China
[19] Yantai Yuhuangding Hosp, Yantai, Shandong, Peoples R China
[20] Jinan Hlth Inst Matern & Infant, Jinan, Shandong, Peoples R China
[21] Nanfang Hosp, Nanfang, Guangdong, Peoples R China
[22] Fudan Univ, Obstet & Gynecol Hosp, Shanghai 200433, Peoples R China
[23] Jining Med Coll, Affiliated Hosp, Jining, Shandong, Peoples R China