Chen X, Wu X, Ouyang W, Gu M, Gao Z, Song M, Chen Y, Lin Y, Cao Y, Xiao H. Novel ent-Kaurane Diterpenoid from Rubus corchorifolius L. f. Inhibits Human Colon Cancer Cell Growth via Inducing Cell Cycle Arrest and Apoptosis. J Agric Food Chem. 2017 Mar 01; 65(8):1566-1573.