Shrestha, A., and S. Carnelio. “Evaluation of Matrix Metalloproteinases-2 (MMP-2) and Tissue Inhibitors of Metalloproteinases-2 (TIMP-2) in Oral Submucous Fibrosis and Their Correlation With Disease Severity”. Kathmandu University Medical Journal, vol. 11, no. 4, Sept. 2015, pp. 274-81, doi:10.3126/kumj.v11i4.12521.