Voudris V, Avramidis D, Papadakis M, Malakos J, Manginas A, Patsilinakos S, Kolovou G, Cokkinos DV. Relative coronary flow reserve: a new index for improved correlation with stress thallium-201 myocardial perfusion imaging in assessment of intermediate and severe coronary artery stenoses. In: EUROPEAN HEART JOURNAL. Vol. 22. WB SAUNDERS CO LTD 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND; 2001. pp. 512–512.