Angiographic assessment of myocardial reperfusion in patients treated with primary angioplasty for acute myocardial infarction: myocardial blush grade - van 't Hof, A W; Liem, A; Suryapranata, H; Hoorntje, J C; de Boer, M J; Zijlstra, F (Circulation, 1998)
; Zwolle Myocardial Infarction Study Group.