Statistical analyses were performed with STATA 13.0 statistical software. 
STATA 13.0 statistical software
Archives of gynecology and obstetrics
D005260:Female; D006801:Humans; D007247:Infertility, Female; D007778:Lactobacillus; D064307:Microbiota; D012336:RNA, Ribosomal, 16S; D014621:Vagina; D016585:Vaginosis, Bacterial
Hong Xiang X ;Ma Jun J ;Yin Jiechen J ;Fang Shenghao S ;Geng Jia J ;Zhao Hongxia H ;Zhu Mengwen M ;Ye Meng M ;Zhu Xiaoyue X ;Xuan Yan Y ;Wang Bei B http://orcid.org/0000-0002-5232-0933