[1] Cairo Univ, Dept Oral Med Periodontol & Diag, Fac Oral & Dent Med, Cairo, Egypt
[2] Natl Res Ctr, Dept Oral & Dent Med Res, Cairo, Egypt
[3] Cairo Univ, Dept Clin Pathol, Kasr Al Aini, Egypt
[4] Cairo Univ, Dept Internal Med, Kasr Al Aini, Egypt
[5] Univ Belgrade, Vinca Inst, Dept Mol Genet & Radiobiol, Belgrade, Serbia