[The practical value of colpocytology in premature labor].
D000028:Abortion, Induced; D000033:Abortion, Threatened; D005260:Female; D006801:Humans; D007234:Infant, Premature; D007743:Labor, Obstetric; D007752:Obstetric Labor, Premature; D011247:Pregnancy; D014626:Vaginal Smears
ABORTION, THREATENED; INFANT, PREMATURE; LABOR; VAGINAL SMEARS