1. Department of Psychological Sciences, Faculty of Health, Arts and Design, Swinburne University of Technology, Melbourne, Australia
2. Department of Mental Health, St Vincent’s Hospital, Melbourne, Australia
3. Department of Library Service, St Vincent’s Hospital, Melbourne, Australia
4. Department of Gastroenterology, Royal Melbourne Hospital, Melbourne, Australia
5. Department of Clinical Health Psychology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
6. Department of Psychiatry, University of Melbourne, Melbourne, Australia
7. York Trials Unit, Department of Health Sciences, University of York, United Kingdom
8. Division of Gastroenterology, Ichan School of Medicine at Mount Sinai, New York, New York
9. Department of Health Sciences, University of York, York, United Kingdom
10. School of Psychology, University of Adelaide, Adelaide, Australia
11. School of Psychology, Deakin University, Burwood, Australia