Qualitative screening of phenolic compounds in olive leaf extracts by hyphenated liquid chromatography and preliminary evaluation of cytotoxic activity against human breast cancer cells. - Fu, Shaoping; Arráez-Roman, David; Segura-Carretero, Antonio; Menéndez, Javier; Menéndez-Gutiérrez, María; Micol, Vicente; Fernández-Gutiérrez, Alberto (Analytical & Bioanalytical Chemistry, 2010)