Two new candidate mutations in type IIA von Willebrand’s disease (Arg834→GLY, GLY846→ARG) and one polymorphism (TYR821→CYS) in the A2 region of the von Willebrand factor - Donnér, M; Kristoffersson, A-C; Bemtorp, E; Scheibel, E; Thorsen, S; Dahl-bäck, B; Nilsson, I M; Holmberg, L (Eur J Haematol, 1993)