Plácido, RuiAlmeida, Ana G.Silva, Pedro Canas daPinto, Fausto J.2018-07-182018-07-182016European Heart Journal, Volume 37, Issue 14, 7 April 2016, Pages 11700195-668Xhttp://hdl.handle.net/10451/34227Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2016.engLeft main ostial agenesis and right coronary artery occlusion : the importance of the ‘Vieussens' arterial ring’journal article10.1093/eurheartj/ehv762