Acharya, A., M. M. Singh, B. R. Pandey, S. B. Pandit, and S. Bartaula. “Role and Adverse Effects of Premedication for Reducing Pain and Discomfort During Fiberoptic Nasal Pharyngoscopy and Laryngoscopy”. Journal of Universal College of Medical Sciences, vol. 8, no. 1, July 2020, pp. 55-59, doi:10.3126/jucms.v8i1.29779.