ul- Haq, Shaikh Naeem-, et al. “Bow-Legs and Knock-Knees in Children - Self Resolving or Pathological Deformity”. Journal of Liaquat University of Medical & Health Sciences, vol. 18, no. 03, Oct. 2019, pp. 197-00, http://121.52.154.205/index.php/jlumhs/article/view/175.