1. Thame UK
2. The Children's Hospital at Westmead; Cochrane Kidney and Transplant, Centre for Kidney Research; Westmead NSW Australia 2145
3. Royal Marsden Hospital; Department of Paediatric Oncology; Sutton UK SM2 5PT
4. University of Kwazulu-Natal; Division of Pharmacology, Discipline of Pharmaceutical Sciences; Private Bag 7 Congella KwaZulu-Natal South Africa 4013
5. IWK Health Centre, Dalhousie University; Paediatric Palliative Care, Department of Paediatrics; Halifax Canada
6. Department of Women’s and Children’s Health, Uppsala University; Paediatric Oncology; Uppsala Sweden
7. Children's and Adolescent's Hospital; German Paediatric Pain Centre; Datteln Germany
8. Witten/Herdecke University, Faculty of Health, School of Medicine; Children's Pain Therapy and Paediatric Palliative Care; Datteln Germany