Bhandari, Shama, et al. “Correlation of Mastoid Pneumatization With Middle Ear Pathology in Unilateral Squamous Type of Chronic Otitis Media”. Journal of Nepalgunj Medical College, vol. 20, no. 2, Dec. 2022, pp. 42-45, doi:10.3126/jngmc.v20i2.51907.