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.