6Wang Z T, Ng T B, Yeung H W,Xu G J. Immunomodulatory effect of a polysaccharide-enriched preparation of Codonopsis pilosula roots[J]. General Pharm:The Vascular System, 1996,27 (8) :1347 - 1350.
7Wang Z T, Du Q, Xu G J, Wang R J, Fu D Z,Ng T B. Investigations on the protective action of Condonopsis pilosula (Dangshen)extract on experimentally-induced gastric ulcer in rats[J]. General Pharm: The Vascular System,1997,28(3) :469 -473.