Abbas Soleimani, Mohammad Alidoosti, Mojtaba Salarifar, Seyed Ebrahim Kassaian, Abbasali Karimi, Saeed Davoodi, Mehrab Marzban, Seyed Hesameddin Abbasi, Mostafa Nejatian, and Ali Abbasi. “Effect of Cardiac Rehabilitation Program on Heart Rate Recovery After Percutaneous Coronary Intervention and Coronary Artery Bypass Grafting”. The Journal of Tehran University Heart Center, Vol. 3, no. 1, 1, pp. 11-16, http://jthc.tums.ac.ir/index.php/jthc/article/view/76.