2 Division of Psychological and Social Medicine, Leeds Institute of Health Sciences, School of Medicine, University of Leeds, Leeds.
3 NIHR Greater Manchester Patient Safety Translational Research Centre and Centre for Mental Health and Safety, University of Manchester; Manchester Academic Health Science Centre; Greater Manchester Mental Health NHS Foundation Trust, Manchester.
4 NIHR Greater Manchester Patient Safety Translational Research Centre and Centre for Mental Health and Safety, University of Manchester; Manchester Academic Health Science Centre, Manchester.