Khan, Q. U., and U. Naeem. “Preparing Platelet-Rich Plasma by Syringe Technique: A Simple, Sterilized and Cost-Effective Outdoor Procedure”. Journal of Pakistan Association of Dermatologists, vol. 28, no. 3, Dec. 2018, pp. 361-2, https://www.jpad.com.pk/index.php/jpad/article/view/1269.