Sohail, K., Nawaz, E., Durrani, O. K., Akram, D., Imtiaz, A., Iqbal, A., Bhatti, W. A., & Bashir, U. (2016). Comparison of perceptions of laypersons, dentists and orthodontists to altered smile aesthetics. Pakistan Orthodontic Journal, 7(2), 76–82. Retrieved from https://poj.org.pk/index.php/poj/article/view/123