The Cytotoxicity of Psoralidin from Psoralea corylifolia - Yang, Yong-Man; Hyun, Jin-Won; Sung, Min-Sook; Chung, Ha-Sook; Kim, Byong-Kak; Paik, Woo-Hyun; Kang, Sam-Sik; Park, Jae-Gahb (Planta Medica, 1996)