Khurayzi, T., & Alshahrani, A. (2017). Metastatic paranasal sinuses adenocarcinoma from breast carcinoma, a rare event: a case report. International Journal of Otorhinolaryngology and Head and Neck Surgery, 3(4), 1099–1102. https://doi.org/10.18203/issn.2454-5929.ijohns20174340