Schmitz, Thomas Outpatient cervical ripening by nitric oxide donors for prolonged pregnancy: a randomized controlled trial. [electronic resource] - Obstetrics and gynecology Dec 2014 - 1089-1097 p. digital Publication Type: Journal Article; Multicenter Study; Randomized Controlled Trial ISSN: 1873-233X Standard No.: 10.1097/AOG.0000000000000544 doi Subjects--Topical Terms: AdultCervical Ripening--drug effectsCesarean Section--statistics & numerical dataDouble-Blind MethodFemaleHumansIsosorbide Dinitrate--analogs & derivativesNitric Oxide Donors--pharmacologyPregnancyPregnancy, Prolonged--drug therapy