COVID-19 in pregnant women: a systematic review and meta-analysis on the risk and prevalence of pregnancy loss. - van Baar JAC; Kostova EB; Allotey J; Thangaratinam S; Zamora JR; Bonet M; Kim CR; Mofenson LM; Kunst H; Khalil A; van Leeuwen E; Keijzer J; et al. (Human reproduction update, 2024)