Ali, Batool, et al. “CHANGES IN ORO-PHARYNGEAL AIRWAY DIMENSIONS AFTER TREATMENT WITH FUNCTIONAL APPLIANCE IN CLASS II SKELETAL PATTERN”. Journal of Ayub Medical College Abbottabad, vol. 27, no. 4, Dec. 2015, pp. 759-63, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/91.