Bhargava, A., faiz, S. M., Jafar, T., Singh, S., Goswami, D. and Singh, H. (2020) “Association of hearing loss and lead exposure in a North Indian tertiary hospital: a pilot study”, International Journal of Otorhinolaryngology and Head and Neck Surgery, 6(10), pp. 1845–1849. doi: 10.18203/issn.2454-5929.ijohns20204187.