Djaara, H. , Yahia, M. , Bousselsela, H. , Khelif, N. , Zidani, A. , Benbia., S.. "Biological Diagnosis and Physiopathology of von Willebrand-s Disease in a Part of the Algerian Population in the East and the South". World Academy of Science, Engineering and Technology, Open Science Index 63, International Journal of Medical and Health Sciences (2012), 6(3), 43 - 46.