MIN-HSIUNG PANChen, C.-M.C.-M.ChenLee, S.-W.S.-W.LeeChen, Z.-T.Z.-T.Chen2018-09-102018-09-102008http://www.scopus.com/inward/record.url?eid=2-s2.0-45549100800&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/338484Cytotoxic triterpenoids from the root bark of Helicteres angustifoliajournal article10.1002/cbdv.200890053