Antitumor Constituents from Bulbs of Crocosmia crocosmiiflora - Nagamoto, Norio; Noguchi, Hideto; Itokawa, Akira; Nakata, Katsuhisa; Namba, Kensuke; Nishimura, Haruki; Matsui, Matao; Mizuno, Mizuo (Planta Medica, 1988)