The dermal graft and cervical incompetency.
D000033:Abortion, Threatened / Q000601:surgery*; D000328:Adult; D005260:Female; D006801:Humans; D008722:Methods; D011247:Pregnancy; D016038:Skin Transplantation; D014182:Transplantation, Autologous; D002577:Uterine Cervical Diseases / Q000601:surgery*