“FREQUENCY OF HEARING IMPAIRMENT IN WORKERS AT RAILWAY INTERSECTIONS AN OBSERVATIONAL STUDY”, Int. Res. J. Pharm., vol. 13, no. 9, pp. 27–31, Sep. 2022, Accessed: Oct. 29, 2026. [Online]. Available: https://irjponline.org/index.php/irjp/article/view/401