Affiliation: | 1. Department of Radiology, Kameda Medical Center, 929 Higashi-cho, Kamogawa, Chiba, 296-8602, Japan 2. Department of Radiology, Jichi Medical University, Tochigi, Japan 3. Cancer Screening Technology Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan 4. Department of Radiology, Kameda Medical Center Makuhari, Chiba, Japan 5. Department of Gastroenterology, Kameda Medical Center Makuhari, Chiba, Japan 6. Department of Surgery, Jichi Medical University, Tochigi, Japan
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