Institution: | 1. Department of Radiology, School of Medicine, Sapporo Medical University, Japan 2. Department of Radiology, Teine Keijinkai Hospital, Maeda 1-12, Teine-ku, 006, Sapporo, Japan 3. Department of Radiology, Kushiro Chuo Hospital, Japan 4. Clinical Laboratory of NTT Sapporo Hospital, Japan 5. Department of Nuclear Medicine, Faculty of Medicine, Hokkaido University, Japan
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