1. Institute for Neuromuscular Research, The Children's Hospital at Westmead, Sydney, Australia,
2. Children'' Hospital Education Research Institute (CHERI), The Children's Hospital at Westmead, Sydney, Australia
3. Department of Psychiatry, Harvard Medical School, Boston, MA, Children's Hospital Boston, Boston, MA
4. Graduate Institute of Professional Psychology, University of Hartford, West Hartford, UK
5. Institute for Neuromuscular Research, The Children's Hospital at Westmead, Sydney, Australia, Discipline of Paediatrics and Child Health, University of Sydney, Sydney, Australia
6. Institute for Neuromuscular Research, The Children's Hospital at Westmead, Sydney, Australia, Children'' Hospital Education Research Institute (CHERI), The Children's Hospital at Westmead, Sydney, Australia, Discipline of Paediatrics and Child Health, University of Sydney, Sydney, Australia