1. Conference on Experimental Animal Histopathology
2. Biological Research Laboratories, Nissan Chemical Industries, Ltd., 1470 Shiraoka, Shiraoka-shi, Saitama 349-0294, Japan.
3. Regulatory Affairs Division, Biosciences Sales & Marketing, Ishihara Sangyo Kaisha, Ltd., 2-3-1, Nishishibukawa, Kusatsu, Shiga 525-0025, Japan.
4. Laboratory of Pathology, Faculty of Pharmaceutical Science, Setsunan University, 45-1 Nagaotohge-cho, Hirakata, Osaka 573-0101, Japan