1. Division of Hematology Department of Internal Medicine Comprehensive Hemophilia Center Mayo Clinic Rochester MN USA
2. Division of Hematopathology Department of Laboratory Medicine and Pathology Mayo Clinic Rochester MN USA
3. The Hemophilia Center Oregon Health & Science University Portland OR USA
4. American Thrombosis and Hemostasis Network Rochester NY USA
5. Department of Biostatistics and Medical Informatics Mayo Clinic Rochester MN USA