Annadurai, Kabilan, and M Bagavandas. “A Systematic Approach for Early Identification of Syphilis Infection Among Men Having Sex With Men in Chennai City: - A Page Rank Based Approach”. Indian Journal of Community Health 29, no. 4 (December 31, 2017): 389–395. Accessed January 17, 2022. https://iapsmupuk.org/journal/index.php/IJCH/article/view/778.