Ghani, R., & Nabi, G. (1989). MAXILLARY SINUSITIS AS A CAUSE OF SECRETORY OTITIS MEDIA IN CHILDREN IN HAZARA DIVISION. Journal of Ayub Medical College Abbottabad, 2(2’3), 24–25. Retrieved from https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/4660