C. S. Reddy, N. Ramalingam, J. S. Hegde, and S. K. Saxena, “Modified transnasal endoscopic repair of bilateral choanal atresia with pulmonary atresia”, Int J Otorhinolaryngol Head Neck Surg, vol. 4, no. 6, pp. 1511–1513, Oct. 2018.