Anti-Proliferative Effects of Lichen-Derived Lipoxygenase Inhibitors on Twelve Human Cancer Cell Lines of Different Tissue Origin in vitro - Haraldsdóttir, Sigurdís; Guðlaugsdóttir, Erna; Ingólfsdóttir, Kristín; Ögmundsdóttir, Helga M (Planta Medica, 2004)