4) a) Yoshikawa M., Yutana P., Kageura T., Matsuda H., Abstracts of papers, the 121th Annual Meeting of the Pharmaceutical Society of Japan, Sapporo, p. 156 March, 2001
b) Yoshikawa M., Murakami T., Kishi A., Yutana P., Matsuda H., Abstracts of papers, the 121th Annual Meeting of the Pharmaceutical Society of Japan, Sapporo, p. 156 March, 2001.