220 Correlation of myocardial function, iron overload and ergospirometry in a thalassemic population with heart failure - Mavrogeni, S; Berdousis, E; Ladis, V; Tsiapras, D; Paraskevaidis, I; Gotsis, E; Cokkinos, D.V.; Kremastinos, D. (European Journal of Heart Failure Supplements, 2006)