"wetenschappelijk artikel"@nl . "1985-10-01T00:00:00Z"^^ . "Birth Outcome Production Functions in the U.S."@en . "Birth Outcome Production Functions in the U.S."@en . "Birth Outcome Production Functions in the U.S."@en . . . . . . "article scientifique"@fr . . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F"@uk . . . "Birth Outcome Production Functions in the U.S."@nl . . "Birth Outcome Production Functions in the U.S."@en . "1729" . . "Birth Outcome Production Functions in the U.S."@nl . . . "Birth Outcome Production Functions in the U.S."@nl . "Birth Outcome Production Functions in the U.S."@fr . "Theodore J. Joyce" . . . "Birth Outcome Production Functions in the U.S."@fr . . "Birth Outcome Production Functions in the U.S."@fr . . . . . . . . . . . "10.3386/W1729" .