Memon, Waqas, Arish Ghani, Irum Naz, Nadeem Hussain Jatoi, and Amir Ali. 2017. “Smile Perception Amongst Orthodontists and Laypersons”. Pakistan Orthodontic Journal 9 (1):56-60. https://poj.org.pk/index.php/poj/article/view/160.