title: [Purification of the von Willebrand factor. I - Initial plasma fractionation].
mesh_terms: D001779:Blood Coagulation Factors / Q000302:isolation & purification*; D011232:Chemical Precipitation; D006801:Humans; D008722:Methods; D011092:Polyethylene Glycols; D014841:von Willebrand Factor / Q000302:isolation & purification*
chemical_list: D001779:Blood Coagulation Factors; D014841:von Willebrand Factor; D011092:Polyethylene Glycols
vernacular_title: Purificação do fator de von Willebrand. I - Fracionamento inicial do plasma.