1. Department of Health Science, Section of Nursing Graduate Level, University West, Trollhättan, Sweden;
2. Department of Clinical and Experimental Medicine and Department of Child and Adolescent Psychiatry, Center for Social and Affective Neuroscience, Linköping University, Linköping, Sweden;
3. Centre for Behavioural Medicine, UCL School of Pharmacy, University College London, London, UK;
4. Department of Medicine and Optometry Faculty of Health and Life Sciences, Linnæus University, Kalmar, Sweden