Khilnani, A. K., R. Thaddanee, and G. Khilnani. “Phantom Ringing Syndrome: An Indian Perspective”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 4, no. 2, Feb. 2018, pp. 477-80, doi:10.18203/issn.2454-5929.ijohns20180710.