1. U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition; 5100 Paint Branch Parkway College Park MD 20740-3835
2. Teagasc, Moorepark Food Research Centre; Moorepark Fermoy, Co. Cork Ireland
3. Agence Française de Sécurité Sanitaire des Aliments, Directorate of Risk Assessment; 27-31, avenue du Général Leclerc BP 19-94701 Maisons-Alfort Cédex France
4. Institute of Milk Hygiene, Milk Technology and Food Science, University of Veterinary Medicine; Veterinaärplatz 1 1210 Vienna Austria