1. Department of Women’s and Children’s Health, Uppsala University, Sweden
2. Department of Gynaecology and Obstetrics, Sundsvall Hospital, Sweden
3. Department of Health Sciences, Mid Sweden University, Sweden
4. Department of Clinical Sciences Obstetrics and Gynaecology, Umeå University, Sweden
5. Centre for Social Research on Alcohol and Drugs (SoRAD), Stockholm University, Sweden