Coronary collateral function in the transplanted heart: propensity score matching with coronary artery disease. - Rutz, Tobias; Gloekler, Steffen; de Marchi, Stefano F.; Traupe, Tobias; Meier, Pascal; Eshtehardi, Parham; Cook, St⇔(c)phane; Vogel, Rolf; Mohacsi, Paul; Seile, Christian (Heart, 2011)