Manonmony, S., S. Balakrishnan, J. Godwin M., R. E. Renjit, A. Mohan, and S. E. John. “Clinical and Radiological Evaluation of Isolated Frontal Sinus Disease: A Case Series”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 8, no. 5, Apr. 2022, pp. 489-92, doi:10.18203/issn.2454-5929.ijohns20221061.