Azad, S.; Beg, A.; Chowdhury, A.; Khatun, U. Cardiovascular Stability During Off-Pump Coronary Artery Bypass (OPCAB) Surgery- A Comparison Between Combined High Thoracic Epidural Anaesthesia (HTEA) With TIVA and TIVA Alone. Cardiovasc. j. 2010, 2, 163-167.