Fractional flow reserve and instantaneous wave-free ratio for the physiological assessment of coronary artery stenosis in the catheterization laboratory: Practical tips Picard, F.; Tadros, V.X.; Pighi, M.; Spagnoli, V.; De Hemptinne, Q.; Ly, H.Q. Annales de Cardiologie et d'Angeiologie 66(1): 32-41 2016 https://eurekamag.com/research/057/897/057897209.php