Bibliographical note

Funding Information:
The authors would like to acknowledge the contributions of all reporting clinicians, research and administration teams without whom the INOSS studies would not be possible. Marian Knight: study design UK and international, data collection UK, data interpretation and writing. Kitty Bloemenkamp: study design Netherlands and international, data collection Netherlands, data interpretation and writing. Serena Donati: study design Italy and international, data collection Italy, data interpretation and writing. Danilo Cereda: study design Italy, data collection Italy, data interpretation and writing. Thomas van den Akker: study design Netherlands, data collection Netherlands, data interpretation and writing. Evelien Overtoom: study design Netherlands, data collection Netherlands, data interpretation and writing. Anna Aabakke: study design Denmark, data collection Denmark, data interpretation and writing. Outi Äyräs: study design Finland, data collection Finland, data interpretation and writing. Hilde Engjom: study design Norway, data collection Norway, data interpretation and writing.

Funding Information:
Hilde Engjom reports funding from the Nordic federation of Societies of Obstetrics and Gynecology (NFOG) research fund and cost refund for travel costs as invited key note speaker at the Norwegian Perinatal Society annual meeting Nov 2021; Marian Knight reports funding from the National Institute or Health Research, the Medical Research Council and Wellbeing of Women; Thomas van den Akker reports funding from the Medical Research Council and the Laerdal Foundation; Anna Aabakke reports funding from The Region of Southern Denmark and Region Zealand's shared fund for joint health research projects and is head of the educational committee of the Danish Society of Obstetrics and Gynaecology (DSOG); Outi Ayras reports funding from the Finnish Medical Foundation and the Nordic Federation of Obstetrics and Gynaecology; Kitty Bloemenkamp reports frunding from the European Medicines Agency (EMA) ‘COVID-19 infectiOn aNd medicineS In pregnancy’ for the INOSS network; Serena Donati reports funding from the Istituto Superiore di Sanità (Italian National Health Institute). Danilo Cereda and Evelien Overtoom have no interests to declare.