Polymerized bovine hemoglobin solution as a replacement for allogeneic red blood cell transfusion after cardiac surgery: Results of a randomized, double-blind trial - Levy, J H; Goodnough, L T; Greilich, P E; Parr, GV S; Stewart, R W; Gratz, I; Wahr, J; Williams, J; Comunale, M E; Doblar, D; Silvay, G; Cohen, M; Jahr, J S; Vlahakes, G J (J Thorac Cardiovasc Surg, 2002)