Karatasakis G, Leontiadis E, Papadakis E, Koutsogiannis N, Athanassopoulos G, Spargias K, Poldermans D, Karagiannis SE, Cokkinos DV. Transthoracic Doppler echocardiography assessment of left anterior descending artery flow in patients with previous anterior myocardial infarction. European Journal of Echocardiography. 2007;9:363–367.