SEARCH Articles Figures Tables Han Fang Ji (Stephaniae tetrandrae Han Fang Ji [Stephaniae tetrandrae radix) L,3,5,7-Tetrahydroxy-8-isoprenylxanthon from Stephania tetrandra Radix Stephania tetrandra Stephania Stephania tetrandra Stephania tetrandra Stephania tetrandra [Bisbenzylisoquinoline