33PA new natural compound identified through a metabolomic approach has cytotoxic activity against human colorectal cancer cell lines with acquired resistance to cetuximab. (23rd October 2018) - De Falco, V; Giunta, E F; Belli, V; Matrone, N; Napolitano, S; Martinelli, E; Vitale, P; Zanaletti, N; Terminiello, M; Vitiello, P P; Ciardiello, F; Troiani, T