Kalopanaxsaponin A is a Basic Saponin Structure for the Anti-Tumor Activity of Hederagenin Monodesmosides - Park, Hee-Juhn; Kwon, Sang-Hyuk; Lee, Joo-Han; Lee, Kyou-Heung; Miyamoto, Ken-ichi; Lee, Kyung-Tae (Planta Medica, 2001)