Massinissa, Y. , A, K. , M, Y. , S, B.. "Genetic Polymorphism of the Acute Lymphoblastic Leukaemia and Hyperhomocysteinemia its Relation with the for a Group of Children in the East of Algeria". World Academy of Science, Engineering and Technology, Open Science Index 63, International Journal of Medical and Health Sciences, (2012), 6(3), 59 - 61.