1. Graduate
School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki 852-8521 Japan
2. Department
of Radioisotope Medicine, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
3. Nishiisahaya Hospital, 3015 Kaizu, Isahaya, Nagasaki 854-0063, Japan