Actions for Health Research Extension Act of 1983 : hearing before the Subcommittee on Health and the Environment of the Committee on Energy and Commerce, House of Representatives, Ninety-eighth Congress, first session, on H.R. 1555, a bill to amend the Public Health Service Act to revise and extend the authorities under that act relating to the National Institutes of Health and the National Research Institutes, and for other purposes February 23, 1983