Coronary artery bypass grafting in patients with an ejection fraction of twenty percent or less.
Kaul TK, Agnihotri AK, Fields BL, Riggins LS, Wyatt DA, Jones CR. Coronary artery bypass grafting in patients with an ejection fraction of twenty percent or less. J Thorac Cardiovasc Surg. 1996 May; 111(5):1001-12.