1Department of Family Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2Department of Family Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
3Department of Family Medicine, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
4Department of Family Medicine, Vievisnamuh Hospital, Seoul, Korea.
5Department of Family Medicine, Yonsei University College of Medicine, Seoul, Korea.
6Department of Family Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.
Copyright © 2017 The Korean Academy of Family Medicine
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