title: A comparison of the quantitative ristocetin von Willebrand factor assay by using fresh and fixed platelets.
mesh_terms: D001779:Blood Coagulation Factors; D001793:Blood Preservation; D005260:Female; D005557:Formaldehyde; D006801:Humans; D008297:Male; D010974:Platelet Aggregation; D012310:Ristocetin; D014842:von Willebrand Diseases / Q000175:diagnosis*; D014841:von Willebrand Factor
chemical_list: D001779:Blood Coagulation Factors; D014841:von Willebrand Factor; D012310:Ristocetin; D005557:Formaldehyde