Eva Wiberg-Itzel 1, Andrea Pembe 2, Anna-carin Wihlbäck 3, Elisabet Darj 4, Helena Åkerud 4
1 Section of Obstetrics and Gynaecology, Karolinska Institute, Soder Hospital, Sweden, Department of Clinical Science and Education, Stockholm, Sweden
2 Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, Department of Obstetrics and Gynaecology, School of Medicine, Dar es Salaam, United Republic of Tanzania
3 University Hospital of Umea, Sweden, Department of Clinical Science, Obstetrics and Gynecology, Umeå, Sweden
4 Uppsala University, Uppsala, Sweden, 4Department of Women's and Children's Health, Uppsala, Sweden