Angiography-derived index of microcirculatory resistance to define the risk of early discharge in STEMI od Scarsini, R, Kotronias, RA, Della Mora, F, Portolan, L, Andreaggi, S, Benenati, S, Marin, F, Sgreva, S, Comuzzi, A, Butturini, C, Pesarini, G, Tavella, D, Channon, KM, Garcia Garcia, HM, Ribichini, F, Banning, AP, De Maria, GL