Bjog BJOG: An International Journal of Obstetrics and Gynaecology, 129(1), 91-100. Wiley-Blackwell Overtoom, E M, Rosman, A N, Zwart, J J, Vogelvang, T E, Schaap, T P, van den Akker, T & Bloemenkamp, K W M 2022, ' SARS-CoV-2 infection in pregnancy during the first wave of COVID-19 in the Netherlands : a prospective nationwide population-based cohort study (NethOSS) ', BJOG: An International Journal of Obstetrics and Gynaecology, vol. 129, no. 1, pp. 91-100 . https://doi.org/10.1111/1471-0528.16903 BJOG: an International Journal of Obstetrics & Gynaecology, 2021(First published: 08 September 2021). Wiley BJOG: An International Journal of Obstetrics and Gynaecology, 129(1), 91-100. WILEY