参考文献

Uoto, Kouichi; Takenoshita, Haruhiro; Yoshino, Toshiharu; Hirota, Yasuhide; Ando, Shuichi; Mitsui, Ikuo; Terasawa, Hirofumi; Soga, Tsunehiko Chemical and Pharmaceutical Bulletin, 1998, vol. 46, # 5 p. 770 - 776