Affiliation: | 1. Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Korea 2. Cardiovascular Center, Seoul National University Hospital, Seoul, Korea 3. Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam, Korea 4. Division of Cardiology, Seoul National University Boramae Medical Center, Seoul, Korea
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