Tullavardhana, Thawatchai, Prinya Akkranurakul, Withoon Ungkitphaiboon, and Dolrudee Songtish. “Matrix Metalloproteinase-9 Expression Is a Marker of Aggressive Esophageal Carcinoma: A Meta-Analysis”. European Journal of Oncology and Environmental Health 20, no. 1 (March 22, 2016): 5–13. Accessed January 22, 2025. https://mattioli1885journals.com/index.php/EJOEH/article/view/4327.