University of Michigan, Ann Arbor, Michigan, USA. Cliniques Saint-Luc, Université Catholique de Louvain, Brussels, Belgium. Children's Hospital of Michigan, Central Michigan University, Detroit, Michigan, USA. The Hospital for Sick Children, Toronto, Ontario, Canada. Center for Bleeding Disorders and Coagulation, Careggi University Hospital, Florence, Italy. Pediatric Hemophilia Treatment Center, University of Miami, Miami, Florida, USA. Hematology/Oncology Clinic, University of California at Davis, Sacramento, California, USA. Nationwide Children's Hospital, Department of Pediatrics at The Ohio State University College of Medicine, Columbus, Ohio, USA. University of Texas Health Science Center at Houston, Houston, Texas, USA. Oklahoma Center for Bleeding and Clotting Disorders at OU Health, Oklahoma City, Oklahoma, USA. Hemophilia Comprehensive Care Center, University of the Witwatersrand and National Health Laboratory Service, Johannesburg, South Africa. Emory University and Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Atlanta, Georgia, USA. Lakeview Hospital, Benoni, Gauteng, South Africa. Edouard Herriot University Hospital, Lyon, France. Institute of Clinical Chemistry, University Hospital Schleswig-Holstein, Kiel, Germany. American Thrombosis and Hemostasis Network, Rochester, New York, USA. Oregon Health & Science University, Portland, Oregon, USA. Louisiana Center for Advanced Medicine, Slidell, Louisiana, USA. Institute of Blood Pathology and Transfusion Medicine, Lviv, Ukraine. National Specialized Children's Hospital Okhmatdyt, Kyiv, Ukraine. Dr. José Eleuterio González Monterrey University Hospital, Monterrey, Nuevo León, México. Hemophilia and Thrombosis Center, University of Colorado, Aurora, Colorado, USA. Department of Hemostasis Disorders and Internal Medicine, Institute of Hematology and Transfusion Medicine, Warsaw, Poland. Children's Hospital Los Angeles, Los Angeles, California, USA. Keck School of Medicine, University of Southern California, Los Angeles, California, USA. Aoede Associates, Athens, Texas, USA. LFB-USA, Inc., Framingham, Massachusetts, USA. HEMA Biologics, LLC, Louisville, Kentucky, USA. LFB, Laboratoire français du fractionnement et des biotechnologies, Les Ulis, France. GLOVAL LLC, Broomfield, Colorado, USA. Indiana Hemophilia and Thrombosis Center, Indianapolis, Indiana, USA.