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The mission of OHDSI is to generate high-quality evidence through observational research. A primary pathway by which this is accomplished is through collaborative research studies.
Learn more on the OHDSI Study FAQ or view example IRB Protocols.
http://www.ohdsi.org/web/wiki/doku.php?id=resources:data_network Link with list of sites: data_network that fully or partially converted their data to the OMOP CDM.
Older List of sites