Is the gap between guidelines and clinical practice in heart failure treatment being filled? Insights from the IMPACT RECO survey - de Groote, P.; Isnard, R.; Assyag, P.; Clerson, P.; Ducardonnet, A.; Galinier, M.; Jondeau, G.; Leurs, I.; Thébaut, J.-F.; Komajda, M. (European Journal of Heart Failure, 2007)