"Ethics." . . "Public Policy." . . . . . "Conference papers and proceedings"@en . "Conference papers and proceedings" . . . . . . . . . . . . . . . . . . "Extending the human life span : social policy and social ethics" . "Extending the human life span social policy and social ethics"@en . . . . . . . . "Life Expectancy." . . "United States" . .