Gouripur, K., M., U.K., Janagond, A.B., Elangovan, S. and Srinivasa, V. 2017. Incidence of sinonasal anatomical variations associated with chronic sinusitis by CT scan in Karaikal, South India. International Journal of Otorhinolaryngology and Head and Neck Surgery. 3, 3 (Jun. 2017), 576–580. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20172291.