1. Arias, H., Gene therapy and cancer.Rev. Med. Chil., 126, 439–449 (1998).
2. Bah, M., Bye, R., and Pereda-Miranda, R., Hepatotoxic pyrrolizidine alkaloids in the Mexican medicinal plantPackera candidissima (Asteraceae: Senecioneae).J. of Ethnopharmacol., 43, 19–30 (1994).
3. Barbetti, P., Fardella, G., Chiappini, I., Menghini, A., Furlani Candiani, A., and Scarcia, V.,In vitro cytostatic activity of Chromatographic fractions of extracts from some species of Compositae.Arzneimittelforschung, 36, 425–427 (1986).
4. Bautista Peres, J., Stubing, G., and Figuerola, R., Guia de las Plantas Medicinales de la Communidad Valenciana. Las Provincial, Valencia (1991).
5. Bohlmann, F., Zdero, C., King, R. M., and Robinson, H., The first acetylenic monoterpene and other constituents fromSenecio clevelandii.Phytochemistry, 20, 2425–2427 (1981).