<p><b>Copyright information:</b></p><p>Taken from "Mapping of oxidative stress responses of human tumor cells following photodynamic therapy using hexaminolevulinate"</p><p>http://www.biomedcentral.com/1471-2164/8/273</p><p>BMC Genomics 2007;8():273-273.</p><p>Published online 13 Aug 2007</p><p>PMCID:PMC2045114.</p><p></p> Horizontal stripes represent genes and columns show treatment protocols. The log2-fold changes of gene ratios are color coded as shown in the bar. The three different columns represent repeated microarray experiments