1. Division of Haematology; University Hospital Zurich; Zurich Switzerland
2. Division of Haematology/Oncology and Child Health Evaluative Sciences; Department of Paediatrics; Research Institute; Hospital for Sick Children; Toronto ON Canada
3. Nationwide Children's Hospital; Columbus OH USA
4. Royal Manchester Children's Hospital; Manchester UK
5. Birmingham Children's Hospital; Birmingham UK
6. Clinical Pharmacology; Novo Nordisk A/S; Søborg Denmark
7. Children's Hospital of Orange County; Children's Hospital and Center for Inherited Blood Disorders; Orange CA USA