Prasad, S., R. Raychowdhury, and A. Roychoudhury. “Assessment of Pre and Postoperative Voice Quality in Cases of Vocal Fold Polyp”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 6, no. 2, Jan. 2020, pp. 352-8, doi:10.18203/issn.2454-5929.ijohns20200150.