Diagnostic challenges in von Willebrand disease. Report of two cases with emphasis on multimeric and molecular analysis. - Moreno-Castaño, AB; Ramos, A; Pino, M; Parra, R; Altisent, C; Vidal, F; Corrales, I; Borràs, N; Torramadé-Moix, S; Palomo, M; Escolar, G; Diaz-Ricart, M (Platelets, 2021)