Bibliografisk träff 2008-01-01 Two new lignans from the stem bark of Magnolia obovata and their cytotoxic activity. Youn U, Chen QC, Lee IS, Kim H, Yoo JK, Lee J, Na M, Min BS, Bae K. Chem Pharm Bull (Tokyo) · research support, non-u.s. gov't; journal article · DOI 10.1248/cpb.56.115