1. Department of Surgical and Perioperative Sciences, Faculty of Medicine, Umeå University, Umeå, Stockholm, Sweden
2. School of Public Health, Makerere University, Kampala, Uganda
3. Makerere University Iganga–Mayuge Health and Demographic Surveillance Site, Makerere University, Kampala, Uganda
4. School of Biomedical Sciences, Makerere University, Kampala, Uganda
5. Department of Public Health Sciences, Karolinska Institute, Stockholm, Sweden
6. Department of Clinical Science and Education, Söder Hospital, Karolinska Institute, Stockholm, Sweden