EU Directive 70/524 February 1999.

US FDA websites: http://vm.cfsan.fda.gov/~ear/m190-11.html; http://vm.cfsan.fda.gov/~ear/

Ingersoll, Bruce, 1990. Technology and Health: FDA Detects Drugs in Milk but Fails to Confirm Results. Wall Street Journal, 6 February p. 86; Ingersoll, Bruce, 1990. Politics and Policy: GAO Says FDA Can't Substantiate Claims About Milk. Wall Street Journal, 21 November p. A16; and Ingersoll, Bruce, 1990. Technology & Health: FDA Plans a Nationwide Test of Milk for Antibiotics, Other Drug Residues. Wall Street Journal, 28 December p. 10.