Affiliation: | 1. Department of Internal Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea 2. Department of Pathology, Yonsei University College of Medicine, Seoul, Republic of Korea 3. Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea 4. Division of Medical Oncology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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