Master thesis discussion of the physician/ EL-Shimaa Abd EL-Naby Muhammad was discussed on Saturday, 14-10—2017. The discussion panel includes prof.Dr. Nawal Mahmoud Soliman, prof.Dr. Ibtesam Muhammad Abd EL-Aal. The thesis was conducted under the supervision of prof.Dr. Hanaa Abd EL-Gawad Abd EL-Magid and prof.Dr. Amina Abd EL-Razik Mahmoud.