1. University of West London; College of Nursing, Midwifery and Healthcare; Paragon House Boston Manor Road Brentford Middlesex UK TW8 9GA
2. Royal Children's Hospital; Centre for Adolescent Health, Murdoch Childrens Research Institute; Flemington Road Parkville Melbourne Victoria Australia 3052
3. Dorset HealthCare University NHS Foundation Trust and Bournemouth University; Department of Mental Health; C/o Weymouth & Portland CMHT Radipole Lane Weymouth UK DT4 0QE
4. King's College London; Health Service and Population Research Department, Institute of Psychiatry; De Crespigny Park London UK SE5 8AF