1. Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
2. Radiation Biology, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), Cairo, Egypt
3. Radiation Microbiology, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), Cairo, Egypt
4. Health Radiation Research, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), Cairo, Egypt