1. Department of Psychiatry, University of Calgary, Calgary, Canada (McKenzie, Addington);
2. Department of Zoology, University of Oxford, Oxford, United Kingdom (Matkin);
3. International Consortium for Health Outcomes Measurement, London (Sousa Fialho, Emelurumonye, Gintner, Ilesanmi, Jagger, Quinney);
4. Service user, Calgary, Canada (Anderson);
5. Mental Health Centre, Copenhagen (Baandrup);