Afzal Ehsan, A., S. Roohi, and E. Minhas. “THE COMPARSION OF CHANGES IN NASAL SYMMETRY BEFORE AND AFTER NASOALVEOLAR MOLDING (NAM)”. Pakistan Orthodontic Journal, vol. 1, no. 2, Dec. 2009, pp. 4-9, https://poj.org.pk/index.php/poj/article/view/20.