Green tea constituents (−)-epigallocatechin-3-gallate (EGCG) and gallic acid induce topoisomerase I- and topoisomerase II-DNA complexes in cells mediated by pyrogallol-induced hydrogen peroxide - Lopez-Lazaro, M; Calderon-Montano, J M; Burgos-Moron, E; Austin, C A (Mutagenesis, 2011)