Novel Topoisomerase I and II Inhibitors, Parameritannins A-2 and A-3, are Selective Human Cancer Cytotoxins

Chikako Nakai, Kohei Kamiya, Toshiko Satake, Isoko Kuriyama, Hiroshi Iijima, Hiroshi Ikawa, Hiromi Yoshida and Yoshiyuki Mizushina

International Journal of Pharmacology 1 ( 2 ): 138 - 151 , 2005