Javaid, Q. ., A. . Usmani, and A. . Qamar. “Anatomical Variations of Frontal Sinuses Among The Male and Female Genders Living in Karachi”. Journal of Bahria University Medical and Dental College, vol. 10, no. 1, Mar. 2021, pp. 44-48, doi:10.51985/JBUMDC2019098.