Wen-Tian LUO, Takashi Seki, Keizo Yamashita, Fumie Aosai, Masakatsu Ueda and Akihiko Yano
Dept. Medical Zoology, Nagasaki University School of Medicine, 101204, Sakamoto, Nagasaki 852, Japan

Takashi Seki
Dept. Internal Medicine, Shinshu Unversity School of Medicine, 3-1-1, Asahi, Matsumoto 390, Japan