Forouzannia SK, Abdollahi MH, Mirhosseini SJ, Hadadzadeh M, Zarepur R, Zarepur E, Beiki O, Sarebanhassanabadi M. Adenosine Preconditioning versus Ischemic Preconditioning in Patients undergoing Off-Pump Coronary Artery Bypass (OPCAB). J Tehran Heart Cent. 2015;8(3):127-131.