Polyphenols from the Heartwood of Cercidiphyllum japonicum and their Effects on Proliferation of Mouse Hair Epithelial Cells - Towatari, Keisuke; Yoshida, Kiyo; Mori, Nobuhiro; Shimizu, Kuniyoshi; Kondo, Ryuichiro; Sakai, Kokki (Planta Medica, 2002)