Authors: Lucas V A Boersma; Manuel Castella; Wimjan van Boven; Antonio Berruezo; Alaaddin Yilmaz; Mercedes Nadal; Elena Sandoval; Naiara Calvo; Josep Brugada; Johannes Kelder; Maurits Wijffels; Lluís Mont Journal: Circulation Date: 2011-11-14 Impact factor: 29.690