. . . . . . . . . . . . . . "How safe is safe enough? risk assessment and the regulatory process : hearing before the Subcommittee on Investigations and Oversight of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred Third Congress, first session, July 27, 1993"@en . "How safe is safe enough? : risk assessment and the regulatory process : hearing before the Subcommittee on Investigations and Oversight of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred Third Congress, first session, July 27, 1993"@en . . .