Dr. Zhao has developed a data archive of publicly available gene expression datasets and corresponding clinical data for published human cancer gene expression profiling studies. The data are stored as BRB-ArrayTools project folders. This makes it easy for BRB-ArrayTools users to make their data publicly available, and it enables other clinical and biological investigators to easily download and start analyzing published data utilizing the most statistically powerful methods available. The archive currently contains data from over 100 major studies of human cancer. Dr. Zhao has also developed with SRA/Emmes contractors a module in BRB-ArrayTools for automatically importing microarray gene expression datasets and associated clinical patient information from the Gene Expression Omnibus Archive of the National Center for Biotechnology Information.