1. Occupational Therapy, University of Newcastle, Callaghan (NSW), Australia
2. Clinica de Terapia Ocupacional Pediatrica Beaudry-Bellefeuille, Private Practice, Oviedo, Spain
3. School of Health Sciences, University of Newcastle, Australia
4. Hunter Medical Research Institute, New Lambton Heights (NSW), Australia
5. Clinical Research Design and Statistical Services, Hunter Medical Research Institute, New Lambton Heights (NSW), Australia
6. Paediatric Gastroenterologist, Private Practice, Oviedo, Spain
7. Occupational Therapy, School of Health Sciences, University of Newcastle, Australia.