Effect of Enhanced External Counterpulsation (EECP) on Exercise Time Duration and Functional Capacity in Patients with Refractory Angina Pectoris - Bozorgi, Ali; Mehrabi Nasab, Entezar; Sardari, Akram; Nejatian, Mostafa; Nasirpour, Shaghayegh; Sadeghi, Sakineh (The Research in Heart Yield and Translational Medicine (RHYTHM), 2015)