STEM (short for the Short Time-series Expression Miner) is a Java program for clustering, comparing, and visualizing short time series gene expression data from microarray experiments (~8 time points or fewer). Data from short time series gene expression experiments poses special challenges. In these experiments, thousands of genes are being profiled at the same time while the number of time points is few. In such cases, a lot of genes will have the same expression pattern just by random chance. Moreover as with any time series experiment, there are usually few full time series repeats from which to gain statistical power. Now, scientists at Creative Proteomics are proud to offer our customers STEM Analysis Service