Combined vaginal progesterone and cervical cerclage in the prevention of preterm birth: a systematic review and meta-analysis.

- Aubin, Anne -Marie; McAuliffe, Liam; Williams, Kimberley; Issah, Ashad; Diacci, Rosanna; McAuliffe, Jack E.; Sabdia, Salma; Phung, Jason; Wang, Carol A.; Pennell, Craig E.