1. Department of Radiology, Graduate School of Medical Science, University of the Ryukyus
2. Department of Infectious, Respiratory, and Digestive Medicine, Control and Prevention of Infectious Diseases, Graduate School of Medical Science, University of the Ryukyus
3. Division of Pathology, National Hospital Organization, Okinawa National Hospital
4. Department of Pathology and Oncology, Graduate School of Medical Science, University of the Ryukyus