Hamed, Hamed A., Hamdy A. Marzook, Nahed E. Ghoneem, and Mohamed I. El–Anwar. 2018. “Angulated Dental Implants in Posterior Maxilla FEA and Experimental Verification”. Open Access Macedonian Journal of Medical Sciences 6 (2):397-401. https://doi.org/10.3889/oamjms.2018.077.