Competition in the healthcare marketplace [electronic resource] : hearing before the Subcommittee on Consumer Protection, Product Safety, and Insurance of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eleventh Congress, first session, July 16, 2009.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2010.