"With the passage of ARRA (American Recovery and Reinvestment
Act of 2009), $19-billion dollars has been ear-marked for Medicare
and Medicaid technology incentives over the next five years.
Collectively, this program is known as HITECH. If open-source,
medical software advocates have their way, some, if not most, of
that money will be going to free software and open standard based
EHR (electronic health records).
"The most important of the open-source EHR systems are the ones
built on VistA (Veterans Health Information Systems and Technology
Architecture), the US Veterans Administration's public domain EHR.
Don't let the name fool you. VistA has nothing to do with Microsoft
Vista. The core, open-source VistA code is called WorldVista."