Marla, V., D. Baral, P. Pokharel, A. Shrestha, R. Gyawali, and J. Giri. “Cellular Alteration of the Oral Mucosa Due to Orthodontic Appliances and Tobacco Smoking: A Cytomorphometric Study”. Journal of College of Medical Sciences-Nepal, Vol. 15, no. 3, Oct. 2019, pp. 206-10, doi:10.3126/jcmsn.v15i3.22620.