1. Department of Food Safety and Public Veterinary Health
2. Istituto Superiore Di Sanità
3. 00161 Rome
4. Italy
5. MCA Laboratory
6. Queen Beatrix Hospital
7. 7101 BN Winterswijk
8. The Netherlands
9. Department of Biochemistry
10. Pharmacology and Toxicology
11. Institute of Biology and Pathology
12. University Hospital Grenoble
13. 38043 Grenoble Cedex 9
14. Nutritional Biochemistry
15. Division of Laboratory Sciences
16. National Centre for Environmental Health
17. CDC
18. Atlanta
19. Laboratory of Inorganic and Nuclear Chemistry
20. Wadsworth Center
21. New York State Department of Health
22. Albany
23. USA
24. Department of Clinical Biochemistry
25. Royal Surrey County Hospital, SAS Trace Element Centre
26. Guildford
27. UK