Query4All.com
子宫口
Data generated from past analysis.
https://zh.wikipedia.org/zh-hans/%E5%AD%90%E5%AE%AE%E9%A0%B8
https://baike.baidu.com/item/%E5%AD%90%E5%AE%AB%E5%8F%A3/10972958
https://zh.wikipedia.org/zh-hans/%E5%AD%90%E5%AE%AB%E9%A2%88%E5%86%85%E5%8F%A3
https://baike.sogou.com/v7813959.htm
https://www.imaios.com/cn/e-anatomy/anatomical-structure/ostium-externum-uteri-1541247828
https://m.baidu.com/bh/m/detail/qr_904103818806626987?frsrcid=235
https://screening.iarc.fr/colpoch/Chapter%2001.pdf
https://www.sohu.com/a/483872518_121118804
http://baby.sina.com.cn/health/09/0411/0948149629.shtml