The unbearable lightness of the instantaneous wave-free ratio/fractional flow reserve discordance
Cardiovascular Institute, Azienda Ospedaliero-Universitaria di Ferrara, Cona (FE), Italy Correspondence to Gianluca Campo, MD, Cardiovascular Institute, Azienda Ospedaliera Universitaria S. Anna, Via Aldo Moro 8, 44124 Cona (Fe), Italy Tel: +39(0)532236450; e-mail: cmpglc[email protected] Received 2 October, 2021 Accepted 31 October, 2021