Erratum to "Vaginal cervico-isthmic cerclage versus McDonald cerclage in women with a previous failure of prophylactic cerclage: A retrospective study" [Eur. J. Obst. Gynecol. Reprod. Biol. 216 (September 2017) 27–32]. (December 2018) - Capmas, P.; Letendre, I.; Leray, C.; Deffieux, X.; Duminil, L.; Subtil, D.; Fernandez, H.