Rao, G.V.S., Yannamreddy, L.R., Rao, G.V.K.C. and Cuddapah, S.R. 2025. Aspergillus niger associated calcium oxalate otolith in the external auditory canal: an uncommon clinical presentation. International Journal of Otorhinolaryngology and Head and Neck Surgery. 11, 5 (Sep. 2025), 613–615. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20252999.