1. Department of Electrical Engineering and Computer Science, University of Stavanger, Stavanger, Norway
2. Department of Mathematics and Physics, University of Stavanger, Stavanger, Norway
3. Research Institute, Haydom Lutheran Hospital, Manyara, Tanzania
4. Department of Obstetrics and Gynecology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, Tanzania
5. Department of Health Sciences, University of Stavanger, Stavanger, Norway
6. Department of Anesthesiology and Intensive Care, Stavanger University Hospital, Stavanger, Norway