1 Maria Loades MA (Cantab) DClinPsy, is a Clinical Tutor in the Department of Psychology, at the University of Bath, and a Senior Clinical Psychologist at the Specialist Paediatric CFS/ME team, Royal United Hospitals, Bath, UK. No conflicts of interest.
2 Amberly Brigden BSc (hons) MSc, is a Research Associate at the School of Social and Community Medicine, University of Bristol, UK. No conflicts of interest.
3 Esther Crawley BA (Hons) BM BCh (Oxon), PhD is a Professor of Child Health at the School of Social and Community Medicine, University of Bristol, UK. No conflicts of interest.