The pharmacokinetic diversity of two von Willebrand factor (VWF)/ factor VIII (FVIII) concentrates in subjects with congenital von Willebrand disease. Results from a prospective, randomizsd crossover study - Kessler, C M; Friedman, K; Schwartz, B A; Gill, J C; Powell, J S; Wilate, P K (Thromb Haemost, 2011)