El Nahass, H., N. N. El Din, and S. A. Nasry. “The Effect of Strontium Ranelate Gel on Bone Formation in Calvarial Critical Size Defects”. Open Access Macedonian Journal of Medical Sciences, vol. 5, no. 7, Dec. 2017, pp. 994-9, doi:10.3889/oamjms.2017.164.