参考文献

Choi, Yong-Hwa; Fujioka, Shozo; Nomura, Takahito; Harada, Atsushi; Yokota, Takao; Takatsuto, Suguru; Sakurai, Akira Phytochemistry, 1997, vol. 44, # 4 p. 609 - 613 doi: 10.1016/S0031-9422(96)00572-9