Affiliation: | 1. Department of Internal Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro-173-beon-gil, Seongnam, 463-707, Korea 2. Seoul International School, 15 Seongnam-daero-1518-beon-gil, Seongnam, 461-830, Korea 3. Cancer Research Institute, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul, 110-799, Korea 4. Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Korea 5. Department of Internal Medicine, SMG-SNU Boramae Medical Center, 20 Boramae-ro-5-gil, Seoul, 156-707, Korea 6. Department of Pathology, Seoul National University Hospital, 101 Daehak-ro, Seoul, 110-744, Korea
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