1. Professor and Director Pediatric Hematology/Oncology; Michigan State University; East Lansing MI USA
2. Department of Hematology; University Medical Center Utrecht; Utrecht The Netherlands
3. Clinical Senior Lecturer in Medicine, Department of Gastroenterology; Christchurch Hospital and University of Otago; Christchurch New Zealand
4. Former Director of the Alfred Hospital; Ronald Sawers Haemophilia Centre; Melbourne Australia