Noehr, Bugge Loop electrosurgical excision of the cervix and risk for spontaneous preterm delivery in twin pregnancies. [electronic resource] - Obstetrics and gynecology Sep 2009 - 511-515 p. digital Publication Type: Journal Article ISSN: 0029-7844 Standard No.: 10.1097/AOG.0b013e3181b1377b doi Subjects--Topical Terms: Ablation TechniquesAdolescentAdultCohort StudiesConizationElectrosurgeryFemaleHumansPregnancyPregnancy Complications, Neoplastic--pathologyPregnancy, MultiplePremature Birth--epidemiologyRetrospective StudiesRisk FactorsTwinsUterine Cervical Neoplasms--complicationsYoung AdultUterine Cervical Dysplasia--complications