Coronary Artery Bypass Surgery versus Medical Treatment in Patients with Low Ejection Fraction and Coronary Artery Disease - Sadeghian, Hakimeh; Salarifar, Mojtaba; Karimi, Abbas Ali; Marzban, Mehrab; Abbasi, Kyomars; Lotfi-Tokaldany, Masoumeh; Sheikhfathollahi, Mahmood; Majd, Mohammad; Jahangiri, Sirous; Abbasi, Seyed Hesameddin (The Research in Heart Yield and Translational Medicine (RHYTHM))