Medical device amendments, 1973 : hearings before the Subcommittee on Health of the Committee on Labor and Public Welfare, United States Senate, Ninety-third Congress, first session on S. 2368, to protect the public health by amending the Federal Food, Drug, and Cosmetic Act to assure the safety and effectiveness of medical devices : S. 1446, to protect the public health by amending the Federal, Food, Drug, and Cosmetic Act to assure the safety and effectiveness of medical devices : S. 1337, to protect the public health by amending the Federal Food, Drug, and Cosmetic Act to assure the safety, reliability, and effectiveness of medical devices, September 14 and 17, 1973.