National Health Program: Hearings Before a Subcommittee of the Committee on Labor and Public Welfare, United States Senate, Eightieth Congress, First Session, on S. 545, a Bill to Coordinate the Health Functions of the Federal Government in a Single Agency; to Amend the Public Health Service Act for the Following Purposes: to Expand the Activities of the Public Health Service; to Promote and Encourage Medical and Dental Research in the National Institute of Health and Through Grants-in-aid to the States; to Construct in the National Institute of Health a Dental Research Institute; and for Other Purposes, and S. 1320, a Bill to Provide a National Health Insurance and Public Health Program, Part 4