VistA, an open-source software developed by the Department of Veterans Affairs, could be used to improve the capabilities of hospitals that serve rural residents or the poor, but installation costs as well as training requirements hinder its widespread use, experts said. Sen. Jay Rockefeller, D-W.Va., is pushing for a bill aimed at boosting the adoption of the platform, but a hospital executive said VistA should be deployed only "where it's a good fit" because it might not suit other settings, including small physician practices with multiple payors.

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