1. Specialist Learning Disability Services Mersey Care NHS Foundation Trust Lancashire UK
2. Clinical Psychology Programme University of Liverpool Liverpool UK
3. Division of Psychiatry University College London London UK
4. Department of Psychiatry, Centre for Developmental Psychiatry and Psychology Monash University Melbourne Vic. Australia
5. CEDAR and Centre for Education Studies (CES) University of Warwick Coventry UK
6. The Danshell Group UK