Secure Enterprise Master Patient Index is a Scientific record linkage tool for performing privacy preserving and non privacy preserving record linkage. It is based on OpenEMPI and the research and the work is conducted by the Vanderbilt University.
http://hiplab.mc.vanderbilt.edu/projects/soempi/
For binary (ear Enterprise Archive format ready to be deployed to JBoss) distribution and link to VirtualBox image see SOEMPIbin repository
More to come.