The anti-HBsAg (human type B hepatitis, surface antigen) and anti-HBeAg (human type B hepatitis, e antigen) C18 dibenzocyclooctadiene lignans from Kadsura matsudai and Schizandra arisanensis - Wu,M.D.; Huang,R.L.; Kuo,L.M.; Hung,C.C.; Ong,C.W.; Kuo,Y.H. (Chem Pharm Bull, 2003)