Published on in Vol 7, No 7 (2020): July
1 Institute of Clinical Medicine, Norwegian Centre for Mental Disorders Research, Faculty of Medicine, University of Oslo, Oslo, Norway
2 Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
3 Division of Mental Health and Addiction, Vestfold Hospital Trust, Toensberg, Norway
4 Spectrum Centre, Division of Health Research, Lancaster University, Lancaster, United Kingdom