Affiliation: | 1. Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States;2. Division of Cardiology, Hospital de Clinicas de Porto Alegre, Federal University of Rio Grande do Sul, Brazil;3. Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States;4. Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States;1. Itoigawa General Hospital, Niigata, Japan;2. The Second Department of Internal Medicine, University of Toyama, Toyama, Japan |