Cytotoxic activity of alpha-humulene and trans-caryophyllene from Salvia officinalis in animal and human tumor cells - el Hadri, A; del Rio, M AG; Sanz, J; Coloma, A G; Idaomar, M; Ozonas, B R; Gonzalez, J B; Reus, M IS (An Real Acad Nal Farm, 2010)