Professor Treasure is a psychiatrist who has specialised in the treatment of eating disorders for over 20 years. She trained with Professor Gerald Russell at the Maudsley hospital and the Institute of Psychiatry. The clinic provides treatment for a population of 2 million in south-east London and is a national referral centre. The unit is active in research and development.

Ulrike Schmidt, Section of Eating Disorders, Institute of Psychiatry, De Crespigny Park, London, SE5 8AF, United Kingdom

Dr Ulrike Schmidt is a Consultant Psychiatrist in the Eating Disorders Unit at the Maudsley Hospital and Reader in Eating Disorders at the Institute of Psychiatry. Her research interests include all aspects of eating disorders, but in particular brief psychological and self-help treatments. She has co-authored two self-help books and accompanying clinicians' guides.

Eric van Furth, Robert-Fleury Stichting , national Centre for Eating Disorders, PO Box 2260, AK Leidschendam, The Netherlands

Dr Eric van Furth is a psychologist-Psychotherapist in the National Centre for Eating Disorders at the Robert-Fleury Stichting (Robert-Fleury Foundation),  a general psychiatric hospital in Leidschendam, The Netherlands. he is Honorary Lecturer at the Department of Psychiatry of Leiden University and Honorary Senior Research Fellow at the Department of Psychiatry at St. George's Hospital Medical School, London (UK).