1. Laboratory Animal Science Div., Astellas Research Technologies Co., Ltd., 1-6 Kashima 2-chome, Yodogawa-ku, Osaka 532-8514, Japan
2. KAC Co., Ltd., 1-6 Kashima 2-chome, Yodogawa-ku, Osaka 532-8514, Japan
3. Drug Safety Research Labs, Astellas Pharma Inc., 1-6 Kashima 2-chome, Yodogawa-ku, Osaka 532-8514, Japan