Sohail, K., K. M. Siddiqi, M. Z. Baig, H. A. Sahibzada, and A. M. Shahid. “SALIVARY BIOMARKER INTERLEUKIN-8 LEVELS CORRELATED WITH DIFFERENT PARAMETERS OF NASWAR (SMOKE LESS TOBACCO) USAGE”. Pakistan Oral & Dental Journal, Vol. 39, no. 1, Apr. 2019, pp. 24-29, http://www.podj.com.pk/index.php/podj/article/view/341.