Inhibitory Effects of Oren-Gedoku-to and its Components on Cholesteryl Ester Synthesis in Cultured Human Hepatocyte HepG2 Cells: Evidence from the Cultured Hep2G Cells and In Vitro Assay of ACAT - Yotsumoto, H; Yanagita, T; Yamamoto, K; Ogawa, Y; Cha, J Y; Mori, Y (Planta Medica, 1997)