作者单位:Menoufia Univ, Fac Med, Med Biochem & Mol Biol, Al Minufiyah, Egypt[1]Alexandria Univ, Med Res Inst, Human Genet, Alexandria Governorate, Egypt[2]Menoufia Univ, Fac Med, Internal Med, Al Minufiyah, Egypt[3]Tanta Univ, Fac Med, Clin Pathol, Tanta, Egypt[4]