M. Afify, M. Helmy, and N. Abbas, “Evaluation of Biting Force of New Design of Extracoronal Castable Precision Attachment versus Conventional Partial Denture for Treatment of Unilateral Mandibular Distal Extension Area: A Randomized Controlled Trial”, Open Access Maced J Med Sci, vol. 8, no. D, pp. 23–28, Apr. 2020.