Lignans as Anti-Tumor-Promoter from the Seeds of Hernandia ovigera - Ito, Chihiro; Itoigawa, Masataka; Ogata, Masakazu; Mou, Xiao Yang; Tokuda, Harukuni; Nishino, Hoyoku; Furukawa, Hiroshi (Planta Medica, 2001)