参考文献

Yoshikawa, Masayuki; Li, Xuezheng; Nishida, Eriko; Nakamura, Seikou; Matsuda, Hisashi; Muraoka, Osamu; Morikawa, Toshio Chemical and Pharmaceutical Bulletin, 2008 ,  vol. 56,  # 4  p. 559 - 568