1. Faculty of Medicine and Health Sciences; Norwegian University of Science and Technology; Trondheim Norway
2. Faculty of Medicine and Health Science; Norwegian University of Science and Technology; Aalesund Norway
3. Faculty of Medicine and Health Sciences; University of Nottingham; UK
4. Faculty of Medicine and Health Sciences, Department of Mental Health; Norwegian University of Science and Technology, St Olav's University Hospital HF, Tiller District Psychiatric Centre; Trondheim Norway