1. The Children's Hospital at Westmead; Cochrane Kidney and Transplant, Centre for Kidney Research; Westmead NSW Australia 2145
2. Pain Research Unit, Churchill Hospital; Cochrane Pain, Palliative and Supportive Care Group; Oxford UK
3. University of Kwazulu-Natal; Division of Pharmacology, Discipline of Pharmaceutical Sciences; Private Bag 7 Congella KwaZulu-Natal South Africa 4013
4. Stanford University; Anaesthesiology, Perioperative & Pain Medicine, and Paediatrics; 300 Pasteur Drive Stanford CA USA 94305
5. Boston Children’s Hospital; Anesthesiology, Perioperative and Pain Medicine; Boston Massachusetts USA
6. Boston Children’s Hospital; Mayo Family Pediatric Pain Rehabilitation Center; Boston Massachusetts USA
7. Campbell University; College of Pharmacy and Health Sciences; Buies Creek North Carolina USA
8. Children's and Adolescent's Hospital; German Paediatric Pain Centre; Datteln Germany
9. Thame UK