Suppression of Fas-Mediated Apoptosis of Keratinocyte Cells by Chikusetsusaponins Isolated from the Roots of Panax japonicus - Hosono-Nishiyama, Kanako; Matsumoto, Tsukasa; Kiyohara, Hiroaki; Nishizawa, Ai; Atsumi, Takamasa; Yamada, Haruki (Planta Medica, 2006)