Najam, Zahida, Usman Ahmed, and Ayesha Aslam. “Functional Appliance Therapy With U-Bow Activator”. Pakistan Orthodontic Journal 9, no. 2 (December 30, 2017): 103–105. Accessed April 21, 2026. https://poj.org.pk/index.php/poj/article/view/170.