Affiliation: | 1. Department of Preventive Medicine, Gacheon University College of Medicine, Inchon, Republic of Korea 2. Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea 3. Cancer Research Institute, Seoul National University, Seoul, Republic of Korea 4. Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea 5. Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Hospital, Seoul, Republic of Korea 6. Department of Surgery, Seoul National University College of Medicine and Seoul National University Hospital, Seoul, Republic of Korea
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