title: Von Willebrand factor assay proficiency testing continued.
authors.forename: Emmanuel J
authors.initials: EJ
authors.lastname: Favaloro
mesh_terms: D001780:Blood Coagulation Tests / Q000592:standards*; D006801:Humans; D011361:Professional Competence; D014841:von Willebrand Factor / Q000378:metabolism*
chemical_list: D014841:von Willebrand Factor