title: RETRACTED: Long-term follow-up after abdominal cerclage: A population-based cohort study.
abstract: This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief and the Authors as the Authors failed to request and receive permission to use the data from Aarhus Hospital.
authors.affiliation: Department of Clinical Research, North Region Hospital, Hjørring, Denmark. Electronic address: k.sneider@rn.dk.
authors.forename: Kirstine
authors.initials: K
authors.lastname: Sneider
authors.affiliation: Department of Obstetrics and Gynecology, Aalborg University Hospital, Aalborg, Denmark; The Fertility Clinic, University Hospital Copenhagen, Denmark.
authors.forename: Ole Bjarne
authors.initials: OB
authors.lastname: Christiansen
authors.affiliation: Department of Obstetrics and Gynecology, Aarhus University Hospital, Skejby, Aarhus, Denmark.
authors.forename: Iben Blaabjerg
authors.initials: IB
authors.lastname: Sundtoft
authors.affiliation: Department of Obstetrics, Rigshospitalet, University of Copenhagen, Denmark.
authors.forename: Jens
authors.initials: J
authors.lastname: Langhoff-Roos