Ibraheem, Aseel, and Aysar Mohammed. “Effect of Alendronate Treatment on Salivary Levels of Osteoprotegrin and TNF-α in Postmenopausal Woman With Osteoporosis and Periodontal Diseases”. Journal of Baghdad College of Dentistry 30, no. 2 (June 15, 2018): 17-22. Accessed November 30, 2019. http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/2458.