Anto, R., K. Natarajan, R. Sampathkumar, A. Kumar, and M. Kameswaran. “Otorhinolaryngological Manifestations in Down Syndrome: MERF Experience”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 5, no. 4, June 2019, pp. 1065-70, doi:10.18203/issn.2454-5929.ijohns20192731.