Thapa, V. B., Shrestha, A., Sherchan, P., Poudel, P., & Joshi, L. (2018). Twin block appliance: Effect on pharyngeal airway. Journal of Kathmandu Medical College, 7(4), 147–152. Retrieved from https://jkmc.com.np/ojs3/index.php/journal/article/view/468