Type IIB von Willebrand factor with normal sialic acid content induces platelet aggregation in the absenceof ristocetin - De Marco, L; Mazzucato, M; Grazia Del Ben, M; Budde, U; Federici, A B; Girolami, A; Ruggeri, T M (J Clin Invest, 1987)
Role of platelet activation, fibrinogen and two distinct membrane receptors