New contribution to the study of ventricular remodeling and valve rings in dilated cardiomyopathy: Anatomical and histological evalution - Dalva, Moise; Correia, Aristides Tadeu; Jatene, Natalia de Freitas; Saldiva, Paulo Hilário Nascimento; Jatene, Fabio Biscegli (Revista Brasileira de Cirurgia Cardiovascular - RBCCV, 2014)