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Rationale and design of SuPPoRT: a multi-centre randomised controlled trial to compare three treatments: cervical cerclage, cervical pessary and vaginal progesterone, for the prevention of preterm birth in women who develop a short cervix

Crossref DOI link: https://doi.org/10.1186/s12884-016-1148-9

Published Online: 2016-11-21

Published Print: 2016-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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