1. Surgery and Public Health, Department of Paediatric Surgery, Children's Hospital in Lund, Skåne University Hospital, Lund, Sweden
2. Surgery and Public Health, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
3. Department of Obstetrics and Gynaecology, Södersjukhuset, Stockholm, Sweden
4. Centre for Surgery and Public Health, Brigham and Women's Hospital and Harvard Medical School, Massachusetts, USA
5. Department of Laboratory Medicine, Lund University, Lund, Sweden
6. Clinical Studies Sweden, Forum South, Skåne University Hospital, Lund, Sweden
7. Program in Global Surgery and Social Change, Department of Global Health and Social Medicine, Harvard Medical School, and Boston Children's Hospital, Boston, Massachusetts, USA