1. The Department of Pathology I, Faculty of Medicine, Kagoshima University 8-35-1 Sakuragaoka, Kagoshima 890-8520 Japan
2. Yoshitomi Pharmaceutical Industries, Ltd. 214-1, Yamasaki, Fukusaki, Kanzaki, Hyogo 679-2296 Japan
3. Shin Nippon Biomedical Laboratories, Ltd. 2438 Miyanoura, Yoshida, Kagoshima 891-1394 Japan