Das, Suman, Nirmalya Sarkar, Kaushani Chatterjee, and Ayan Paul. “Isolated Congenital Bilateral Choanal Atresia and Nasopharyngeal Atresia- a Case Report”. Bangladesh Journal of Medical Science 13, no. 1 (December 25, 2013): 91–94. Accessed May 16, 2024. https://www.banglajol.info/index.php/BJMS/article/view/14454.