1) Evaluation of uptake values of FDG: Body surface area Vs. body weight correction A Ahmed, M Ali, H Salah, RE Eisa, H Mohieldin, H Omer, A Sulieman, Radiation Physics and Chemistry 201, 110482 https://doi.org/10.1016/j.radphyschem.2022.110482 2) Personal Radiation Doses Monitoring For Nuclear Medicine Technology Students.I Saad, M Mosaad, H Qasem, H Tantawy, H Ibrahim Egyptian J. Nucl. Med 23 (2) https://dx.doi.org/10.21608/egyjnm.2021.217704 3) Added Value of CT Attenuation Correction and Prone Positioning in Improving Breast and Subdiaphragmatic Attenuation in Myocardial Perfusion Imaging AE Tawakol, HM Tantawy, RE Elashmawy, YG Abdelhafez, YM Elsayed Journal of Nuclear Medicine Technology 49 (1), 23-29 https://doi.org/10.2967/jnmt.120.255943 4) Preparedness for prevention and Mitigation guidelines of COVID -19 at Academic Medical institute Ibrahim E Saad, Khaled Alawm, Rawhia Dogham, Hazem Mohieeldin, Dalia M Mohsen IP International Journal of Medical Microbiology and Tropical Diseases, (October 2020) https://doi.org/10.18231/j.ijmmtd.2020.032 5) Variation of Contrast Values for Myocardial Perfusion Imaging in Single-photon Emission Computed Tomography/Computed Tomography Hybrid Systems with Different Correction Methods. HM Tantawy, YG Abdelhafez, NL Helal, IE Saad Journal of Clinical Imaging Science 10 http://dx.doi.org/10.25259/JCIS_123_2020 6) Effect of correction methods on image resolution of myocardial perfusion imaging using single photon emission computed tomography combined with computed tomography hybrid systems HM Tantawy, YG Abdelhafez, NL Helal, AI Kany, IE Saad Journal of Physics Communications 4 (1), 015011 https://iopscience.iop.org/article/10.1088/2399-6528/ab661b 7) Evaluation of varying acquisition parameters on the image contrast in spect studies IE Saad, NL Helal, HM El-Din, RA Moneam Int J Res Rev Appl Sci 13, 485-91 https://www.arpapress.com/Volumes/Vol13Issue2/IJRRAS_13_2_13.pdf 8) Published research paper in The Egyptian Journal of Biophysics and Medical Engineering, Manuscript ID No. 5/2012 – Volume 11, Issue 2.”