Taimoor, Ijlal, Amjad Akram, Syed Abid Hassan Naqvi, Taimoor Ashraf Khan, Muhammad Abdullah Zahid, and Umer Ejaz. “Determining Association of Paranasal Sinus Abnormalities With Nasolacrimal Duct Obstruction”. Pakistan Armed Forces Medical Journal 73, no. SUPPL-2 (July 28, 2023): S320–23. Accessed December 26, 2024. https://pafmj.org/PAFMJ/article/view/4802.