Kalakonda, B., P. Koppolu, K. Baroudi, and A. Mishra. “Periodontal Systemic Connections-Novel Associations-A Review of the Evidence With Implications for Medical Practitioners”. International Journal of Health Sciences, vol. 10, no. 2, Mar. 2016, https://ijhs.qu.edu.sa/index.php/journal/article/view/1241.