National health insurance : joint hearing before the Subcommittee on Health and the Environment of the Committee on Interstate and Foreign Commerce and Subcommittee on Health of the Committee on Ways and Means, House of Representatives, Ninety-sixth Congress, first session, on H. R. 5191 ... and H. R. 5400 ... November 29, 1979. - United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Health and the Environment; United States. Congress. House. Committee on Ways and Means. Subcommittee on Health (U.S. Govt. Print. Off., 1980)