1. Stead Family Department of Pediatrics University of Iowa Carver School of Medicine Iowa City IA USA
2. Department of Haematology Royal Victoria Infirmary Newcastle upon Tyne UK
3. Division of Hematology/Oncology Department of Pediatrics IWK Health Centre and Dalhousie University Halifax NS Canada
4. Division of Pediatric Hematology/Oncology UH Cleveland Medical CenterRainbow Babies & Children's Hospital Cleveland OH USA
5. University of Iowa Libraries Iowa City IA USA
6. Department of Paediatrics Medical University of Vienna Vienna Austria
7. Pediatric Hematology/Oncology Unit Shaare Zedek Medical Center Jerusalem Israel
8. Faculty of Medicine Hebrew University Jerusalem Israel