title: Assays for von Willebrand factor functional activity: a UK NEQAS survey. National External Quality Assessment Scheme.
authors.forename: F E
authors.initials: FE
authors.lastname: Preston
mesh_terms: D003625:Data Collection; D004797:Enzyme-Linked Immunosorbent Assay / Q000706:statistics & numerical data; D005069:Evaluation Studies as Topic; D006801:Humans; D015203:Reproducibility of Results; D006113:United Kingdom; D014842:von Willebrand Diseases / Q000097:blood / Q000175:diagnosis*; D014841:von Willebrand Factor / Q000032:analysis* / Q000502:physiology
chemical_list: D014841:von Willebrand Factor