Pavani, A.S.S., Mouli, S.C., Swetha, V. and Karishma 2024. Orbital apex syndrome secondary to sinusitis . International Journal of Otorhinolaryngology and Head and Neck Surgery. 10, 6 (Nov. 2024), 770–772. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20243526.