P271Long-term longitudinal prospective CMR study in patients with thalassemia major. (28th August 2018) - Pepe, A; Pistoia, L; Casini, T; Renne, S; Tedesco, L; Pulini, S; Santamaria, V; Facchini, E; Keilberg, P; Riva, A; Vallone, A; Positano, V; et al.