Shigeru Okuyama1, Sanae Hashimoto-Kitsukawa1, Shin-Ichi Ogawa1, Yasuko Imagawa1, Kazuaki Kawashima1, Yutaka Kawashima1, Hiroaki Araki1, Susumu Otomo1
1Research Center, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Ohmiya, Saitama 330, Japan [Tel: 048 663 1111; Fax: 048 652 7254]