Azad, Dr. K. L., and Dr. Om Prakash Bhargava. 2018. “Study of Distribution of Tumours in Pharyngeal, Laryngeal, Maxillary and Nasal Cavity Region”. International Journal of Innovative Research in Medical Science 3 (04):1929 to 1932. https://doi.org/10.23958/ijirms/vol03-i04/04.