1. Department of Clinical Sciences, Obstetrics and Gynecology, Umeå University, Umeå, Sweden
2. School of Public Health, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
3. Judith Lumley Centre, La Trobe University, Melbourne, Australia
4. Department of Dermatology and Venereology, Hanoi Medical University, Hanoi, Vietnam