Platelet‐dependent von Willebrand factor activity. Nomenclature and methodology: communication from the SSC of the ISTH

I . BOD O,* J . E IKENBOOM,† R . MONTGOMERY ,‡ J . PATZKE ,§ R . SCHNEPPENHE IM ¶ and J . D I PAOLA ,** ON BEHALF OF THE SUBCOMMITTEE ON VON WILLEBRAND FACTOR *Department of Hematology and Stem Cell Transplantation, St L aszl o Hospital, Budapest, Hungary; †Department of Thrombosis and Hemostasis, Leiden University Medical School, Leiden, the Netherlands; ‡Department of Pediatrics – MFRC, Medical College of Wisconsin, Milwaukee, WI, USA; §Department of Assay Development, Siemens Healthcare Diagnostic Products GmbH, Marburg; ¶Department of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; and **Pediatrics/Genetics, University of Colorado Denver, Aurora, CO, USA