Saha, Mainak, Surbhi Bansal, Vandana Pathak, Shivani Bhardwaj, Astha Chauhan, and Amit Nirwan. “A Comparative Evaluation of Fracture Load of Monolithic and Bilayered Zirconia Crowns With and Without a Cervical Collar: An in Vitro Study”. Medicine and Pharmacy Reports 92, no. 2 (April 24, 2019): 172-177. Accessed May 29, 2020. https://medpharmareports.com/index.php/mpr/article/view/985.