In vitro Antigenotoxic Activity of Novel Ginseng Saponin Metabolites Formed by Intestinal Bacteria - Lee, Byung-Hoon; Lee, Sang-Jun; Hui, Jang-Hyun; Lee, Sooyong; Sung, Jong-Hwan; Huh, Jae-Doo; Moon, Chang-Ku (Planta Medica, 1998)