Affiliation: | 1. Department of Radiology, Institute of Medical Science, Research Institute of Clinical Medicine, Chonbuk National University Medical School and Hospital, 634-18 Keumam-Dong, Jeonju, Jeonbuk, 561-712, South Korea 2. Department of Preventive Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, 634-18 Keumam-Dong, Jeonju, Jeonbuk, 561-712, South Korea 3. Department of Statistics and Institute of Applied Statistics, Chonbuk National University, Keumam-Dong, Jeonju, Jeonbuk, 561-712, South Korea 4. Department of Radiology, National Jewish Health, 1400 Jackson Street, Denver, CO, 80206, USA
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