Animal drug amendments of 1965 : hearing before the Subcommittee on Public Health and Welfare of the Committee on Interstate and Foreign Commerce, House of Representatives, Eighty-ninth Congress, second session on H.R. 7655, H.R. 7797, H.R. 7815, H.R. 8377, H.R. 9542, bills to protect the public health by amending the Federal Food, Drug and Cosmetic Act to consolidate certain provision assuring the safety and effectiveness of new animal drugs, and for other purposes, June 13, 1966.