[1] An Najah Natl Univ, Fac Med & Hlth Sci, Div Anat Biochem & Genet, POB 7, Nablus, Palestine
[2] Basmet Amal Canc Patients Care, Gaza City, Palestine
[3] An Najah Natl Univ, Fac Med, Nablus, Palestine
[4] An Najah Natl Univ, Dept Orthoped, Fac Med, Nablus, Palestine