1. Covid-19: UK Obstetric Surveillance System (UKOSS) study in context;Magee;BMJ,2020
2. Office for National Statistics. Births in England and Wales: 2018-2019. https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/livebirths/bulletins/birthsummarytablesenglandandwales. Accessed 16 August 2021
3. COVID-19 and cause of pregnancy loss during the pandemic: a systematic review;Kazemi;PLoS ONE,2020
4. The incidence, characteristics and outcomes of pregnant women hospitalized with symptomatic and asymptomatic SARS-CoV-2 infection in the UK from March to September 2020: a national cohort study using the UK Obstetric Surveillance System (UKOSS);Vousden;PLoS ONE,2020
5. The effects of COVID-19 on placenta and pregnancy: what do we know so far?;Wong;Diagnostics (Basel),2021