miRStat
identification of common sets of microRNAs for groups of genes
...This Python application is based on the TargetScan 6.2 microRNA target prediction data.
Conserved and Nonconserved site context+ scores files are required (unzip and place to directory with program). Available at http://targetscan.org/cgi-bin/targetscan/data_download.cgi?db=vert_61