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1Department of Internal Medicine, Gwangmyeong Sungae Hospital, Gwangmyeong, Korea.
2Department of Internal Medicine, Sungae Hospital, Seoul, Korea.
3Department of Internal Medicine, CHA Bundang Medical Center, CHA university, Bundang, Korea.
Copyright © 2018 Kosin University College of Medicine
Articles published in Kosin Medical Journal are open-access, distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.