McDonald versus Shirodkar cerclage technique in women requiring a prophylactic cerclage: a systematic review and meta-analysis protocol.
Ashad IssahRosanna DiacciKimberley P WilliamsAnne-Marie AubinLiam McAuliffeJason PhungCarol WangPanos MaourisCraig E PennellPublished in: Systematic reviews (2021)
PROSPERO on 25 of May, 2020 with registration number CRD42020177386.