A multicenter, randomized, placebo-controlled trial of a new form of intravenous recombinant tissue-type plasminogen activator (Activase) in acute myocardial infarction - Topol, E J; Morris, D C; Smalling, R W; Schumacher, R R; Taylor, C R; Nishikawa, A; Liberman, H A; Collen, D; Tufte, M E; Grossbard, E B; O’Neill, W W (J Am Coll Cardiol, 1987)