Neupane, Y., Kharel, B., Dongol, K., Pradhananga, R. B., Rayamajhi, P., & Dutta, H. (2021). Retrospective analysis of difficulties during mastoid surgeries in tertiary referral center in Nepal. International Journal of Otorhinolaryngology and Head and Neck Surgery, 7(3), 420–425. https://doi.org/10.18203/issn.2454-5929.ijohns20210474