Author's Response to Reviews Title : Gene Expression Profile of Normal Human Mammary Epithelial Cells following Exposure to Oxythioquinox as Monitored by Dna Microarrays

Thank you for revising your interesting manuscript (above) and for providing detailed responses to the reviewer comments. We have now received the reports from the four reviewers. Two of them have no further comments, although Dr Yang notes in regard to his first comment that free software is available, such as TreeView, that may allow most of the clustering analysis and heatmaps, and that such global gene expression profiles will provide very useful reference information for future gene expression studies among human populations. Further comments from two reviewers are copied below.