1. Institute of Clinical Medicine, University of Oslo, Norway
2. Better Health for African Mother and Child (BHAMC), Moshi, Tanzania
3. Department of Community Health, Institute of Public Health, Kilimanjaro Christian Medical University College (KCMUCo), Moshi, Tanzania
4. Department of Epidemiology and Biostatistics, Institute of Public Health, Kilimanjaro Christian Medical University College (KCMUCo), Moshi, Tanzania
5. Institute of Basic Sciences, University of Oslo, Norway
6. Department of Forensic Medicine, Oslo University Hospital, Oslo, Norway