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