1. From the Cardiomyopathy Unit (V.M.C.S., C.M.), Magnetic Resonance Section (C.E.R., A.A.S., J.M.A., J.R.P., L.F.d.A.), Laboratory of Pathology (L.A.B.), and Biomedical Technology Center (I.N.C.) from Heart Institute (InCor) da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil; the Cardiology Division and Cardiac Ultrasound Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, MA (M.H.P.); and Duke Cardiovascular Magnetic Resonance Center, Department of...