title: [Proceedings: Hemophilia B (congenital factor IX deficiency)].
mesh_terms: D001779:Blood Coagulation Factors; D002836:Hemophilia B / Q000097:blood / Q000209:etiology; D006801:Humans
chemical_list: D001779:Blood Coagulation Factors
vernacular_title: Emofilia B (difetto congenito di fattore IX.