1. Paediatric Palliative Care Centre, Children's and Adolescents' Hospital, Datteln, and Department of Children's Pain Therapy and Paediatric Palliative Care, Faculty of Health–School of Medicine, Witten/Herdecke University, Datteln, Germany.
2. Clinical Lead Paediatric Palliative Care Service, Starship children's Health, Auckland, New Zealand.