Zuidema, L J Hormones and cervical ripening: dehydroepiandrosterone sulfate, estradiol, estriol, and progesterone. [electronic resource] - American journal of obstetrics and gynecology Dec 1986 - 1252-4 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/0002-9378(86)90154-7 doi Subjects--Topical Terms: Cervix Uteri--physiologyDehydroepiandrosterone--analogs & derivativesDehydroepiandrosterone SulfateEstradiol--bloodEstriol--bloodFemaleHumansLabor, InducedLabor, ObstetricPregnancyProgesterone--blood