1Walanabe K, Walanabe H, Goto Y et al. Studies on the active principles of magnolia bark. Gentrally acting muscle relaxant activity of magnolol and honokiol[J]. Jan J Pharmacal,1975,25:605-609.
2Ito K, Lika T, Ichino K et al. Obovatol and obvator novel biphenyl ether lignaus form the leaves of magnolia obvata thunb[J]. Chem Pharm Bull,1982,30:3347-3353.
