Elbeheiry, Reham Tharwat Kamal, Gehan F. Mohamed, and Amr Mohamed Ismail Badr. 2021. “Evaluation of Maximum Biting Force in Two Different Attachment Systems (Bollard Vs. Ball and Socket) Retaining Mandibular Overdenture: A Split-Mouth Design”. Open Access Macedonian Journal of Medical Sciences 9 (D):47-53. https://doi.org/10.3889/oamjms.2021.5829.