1. Second Division, Department of Internal Medicine; Hamamatsu University School of Medicine; Hamamatsu Japan
2. Department of Clinical Pharmacology and Therapeutics; Hamamatsu University School of Medicine; Hamamatsu Japan
3. Department of Radiology; Osaka International Cancer Institute; Osaka Japan
4. Department of Radiology; Kinki Central Hospital of Mutual Aid Association of Public School Teachers; Itami Japan
5. Department of Laboratory Medicine and Pathology; Mayo Clinic Arizona; Scottsdale AZ USA