1. Colorado Coagulation, Laboratory Corporation of America Holdings; Englewood CO USA
2. Department of Transfusion Medicine and Immunohaematology; Christian Medical College; Vellore Tamil Nadu India
3. IHTC Hemophilia Unit “Cláudio L. P. Corrêa”; Instituto Nacional de Ciência e Tecnologia do Sangue; Hemocentro Unicamp; University of Campinas; São Paulo Brazil