title: Laboratory diagnosis of von Willebrand disease: results from a prospective and blind study in 32 laboratories worldwide using lyophilized plasmas.
authors.affiliation: University of London, London, UK.
authors.forename: C A
authors.initials: CA
authors.lastname: Lee
authors.forename: A
authors.initials: A
authors.lastname: Hubbard
authors.forename: C A
authors.initials: CA
authors.lastname: Sabin
authors.forename: U
authors.initials: U
authors.lastname: Budde
authors.forename: G
authors.initials: G
authors.lastname: Castaman
authors.forename: E J
authors.initials: EJ
authors.lastname: Favaloro
authors.forename: K D
authors.initials: KD
authors.lastname: Friedman
authors.forename: A B
authors.initials: AB
authors.lastname: Federici