![508: A retrospective comparison of cerclage alone vs cerclage and 17P for the prevention of preterm birth]()
508: A retrospective comparison of cerclage alone vs cerclage and 17P for the prevention of preterm birthTemming, Lorene; Kirkland, C. Tyler; Kullstam, Susan; Rozario, Nigel; Mitra, Avick; Joy, Saju · American Journal of Obstetrics and Gynecology · 2013