Health services research and health statistics amendments of 1978 : Hearings before the Subcommittee on Health and the Environment of the Committee on Interstate and Foreign Commerce, House of Representatives, Ninety-fifth Congress, second session on H.R. 11763 a bill to amend the Public Health Service Act to revise and extend the authorities under that act relating to Health Services Research, and for other purposes, H.R. 4869 and 12166 bills to amend the Public Health Service Act to establish within the National Institutes of Health the center for the evaluation of medical practice, H.R. 10839 a bill to amend the Public Health Service Act to establish the National Institutes of Health Care Research ; to extend and revise the assistance programs for health services research and health statistics ; to establish the national center for the evaluation of medical technology, and for other purposes, April 26, 27, and 28, 1978.