D’Orazio G, Hernández-Borges J, Herrera-Herrera AV, Fanali S, Rodríguez-Delgado MÁ. Determination of estrogenic compounds in milk and yogurt samples by hollow-fibre liquid-phase microextraction-gas chromatography-triple quadrupole mass spectrometry. Analytical and Bioanalytical Chemistry. 2016;408(26):7447-7459.