Tanthry, D., Sunny, C.T., Mahesh, S.G. and Devan, P.P. 2019. Rare complications of sinusitis: case series. International Journal of Otorhinolaryngology and Head and Neck Surgery. 5, 2 (Feb. 2019), 497–501. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20190008.