Affiliation: | 1. Noninvasive Cardiovascular Imaging Section, Cardiovascular Division, Department of Medicine and Department of Radiology, Brigham and Women''s Hospital, Harvard Medical School, Boston, Massachusetts;2. Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts;3. Cardiology Division, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil |