Affiliation: | 1. Cardiovascular Research Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA;2. Department of Cardiovascular Medicine, Far Eastern Memorial Hospital, 21, Sec. 2, Nan-Ya South Road, Pan Chiao, Taipei 220, Taiwan;3. Department of Medicine, Brigham and Women''s Hospital, 75 Francis Street, Boston, MA 02115, USA;4. Harvard Stem Cell Institute, Cambridge, MA, USA |