1. 1) Koguma K., Takai T., Sakai H., “Yousyutusiken niyoru Iryouyou Kouhatuiyakuhin no Hinnsitutyousa,” Niigatakenhokenkankyoukagaku-kennkyuusyonenpou, 17 (2002).
2. 2) Takai T., Higuchi R., Koguma K., Sakai H., “Yousyutusiken niyoru Iryouyou Kouhatuiyakuhin no Hinnsitutyousa (No. 2),” Niigatakenhokenkankyou-kagakukennkyuusyonenpou, 18 (2003).
3. 3) Shuukannigakukaishinbun, “Kouhatuiyakuhin wo Sodateru Fuanwo Shinraini Kaerutameni,” Igakushoin (2591, date 2004.07.05).
4. 4) Kimishima K., Tanabe K., Kinoshita Y., Tamaki H., Kawamura M., Kurihara A., J. Yonago Med. Association, 27, 314-323 (1976).
5. 5) Ueki S., Watanabe S., Yamamoto T., Shibata S., Shibata K., Jpn. J. Pharmacol., 35, 287-299 (1984).