Jo Derisley, ClinPsyD, AFBPsS, DipCogTher, is Honorary Senior Lecturer at the University of East Anglia, and Consultant Clinical Psychologist at the Norfolk & Waveney Mental Health Care Trust, UK. She has written several articles on the subject.
Sarah Robinson, BSc, is Assistant Psychologist at the national and specialist OCD and related disorders clinic for children and young people at the Maudsley Hospital, UK.
Cynthia Turner, PhD, MClinPsych, is Honorary Lecturer at the King's College Institute of Psychiatry, London and Senior Clinical Psychologist at the national and specialist OCD clinic for children and young people, Maudsley Hospital, UK. She specialises in the treatment of OCD and anxiety disorders in young people, and has written treatment programs for these disorders, as well as book chapters and scientific articles.