1. Department of Hematology and Stem Cell Transplantation; St László Hospital; Budapest Hungary
2. Department of Thrombosis and Hemostasis; Leiden University Medical School; Leiden the Netherlands
3. Department of Pediatrics - MFRC; Medical College of Wisconsin; Milwaukee WI USA
4. Department of Assay Development; Siemens Healthcare Diagnostic Products GmbH; Marburg Germany
5. Department of Pediatric Hematology and Oncology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
6. Pediatrics/Genetics; University of Colorado Denver; Aurora CO USA