1. Faculty of Health Sciences, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
2. Finnish Institute of Occupational Health, Kuopio, Finland
3. Department of Adult Health, School of Nursing, University of Ghana, Legon, Accra, Ghana
4. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Ghana, Korle-Bu-Accra, Ghana
5. Faculty of Health Sciences, Department of Nursing Science, University of Eastern Finland, Finland
6. Kuopio University Hospital, Kuopio, Finland