1. The Children's Hospital at Westmead; Cochrane Kidney and Transplant, Centre for Kidney Research; Westmead NSW Australia 2145
2. Stanford University; Department of Anesthesiology, Perioperative and Pain Medicine; 1070 Arastradero Road, Suite 300 Palo Alto California USA 94304
3. Starship Children’s Hospital; Paediatric Intensive Care Unit; Park Road, Grafton Auckland New Zealand
4. IWK Health Centre, Dalhousie University; Paediatric Palliative Care, Department of Paediatrics; Halifax Canada
5. Department of Women’s and Children’s Health, Uppsala University; Paediatric Oncology; Uppsala Sweden
6. University of Bath; Centre for Pain Research; Claverton Down Bath UK
7. Pain Research Unit, Churchill Hospital; Cochrane Pain, Palliative and Supportive Care Group; Oxford UK
8. Ghent University; Department of Clinical and Health Psychology; Ghent Belgium