1. Psychologist, private practice Brussels; Belgium
2. Clinical Psychologist, Department of Clinical Immunology; Royal Free London National Health Service Foundation Trust and Institute of Immunity and Transplantation, University College; London
3. Consultant Child and Adolescent Psychiatrist, Child and Adolescent Eating Disorders Service; South London and Maudsley National Health Service Foundation Trust; London
4. Professor of Clinical Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London
5. Professor Emeritus of Family Psychology and Family Therapy; Institute of Psychiatry, Psychology and Neuroscience King's College London; Strand London WC2R 2LS UK