Combination of von Willebrand disease type 1 and partial factor XII deficiency in children: clinical evidence for a diminished bleeding tendency.
Zeitler P, Meissner N, Kreth HW. Combination of von Willebrand disease type 1 and partial factor XII deficiency in children: clinical evidence for a diminished bleeding tendency. Acta Paediatr. 1999 Nov; 88(11):1233-7.