Dimas, K. Demetzos, C. Marsellos, M. Sotiriadou, R. Malamas, M. Kokkinopoulos, D., Cytotoxic activity of labdane type diterpenes against human leukemic cell lines in vitro, Planta Medica, (64), 208-211, 1998, 0032-0943, 1439-0221