1. Department of Community Medicine, Faculty of Health Sciences, UiT – The Arctic University of Norway, Tromsø, Norway
2. International School of Public Health, Northern State Medical University, Arkhangelsk, Russia
3. Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
4. Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway