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Start Over Year 2007 Resource Type Polygon data Creator U.S. Census Bureau
2007. California. Office of Statewide Health Planning and Development, InfoUSA, and U.S. Census Bureau. The 2007 MSSA Detail layer (developed during July 2009 - July 2010) is an update to the 2005 version. The 2000 Medical Service Study Area (MSSA) Ce... California. Office of Statewide Health Planning and Development.