Vaginal epithelial surface appearances in women using vaginal rings for contraception
Reference
Fraser IS, Lacarra M, Mishell DR, Alvarez F, Brache V, Lähteenmäki P, Elomaa K, Weisberg E, Nash HA, 2000,
Vaginal epithelial surface appearances in women using vaginal rings for contraception, Contraception, 61(2) 131-8