Yameen, Mubashar, Muhammad Maqsood, Maimona Saleh, Imtiaz Ahmed Shakir, and Atifa Shuaib. “Association of Folic Acid Deficiency With Ischemic Heart Disease”. Journal of Rawalpindi Medical College 22 (June 30, 2018): 108-111. Accessed April 7, 2020. http://journalrmc.com/index.php/JRMC/article/view/874.