| Affiliation: | 1. Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, SC;2. Division of Cardiac Surgery, The University of Pittsburgh Medical Center, Pittsburgh, Pa;1. Department of Thoracic and Cardiovascular Surgery, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea;2. Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea;1. Division of Gerontology, Istanbul University-Cerrahpasa, Faculty of Health Sciences, Istanbul, Turkey;2. Department of Cardiovascular Surgery, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey |
