K, Thaer, Bashar Abdulla, and Khitam Kadhim. “Immunohistochemical Expression of MMP9, As a Marker of Local Invasion in Hodgkin’s and Non-Hodgkin’s Lymphoma of the Head and Neck Region”. Journal of Baghdad College of Dentistry 27, no. 1 (1): 128-132. Accessed November 29, 2019. http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/647.