1. Supra-regional Assay Service
2. Trace Element Laboratory
3. Royal Surrey County Hospital
4. UK
5. Trace Elements Laboratory
6. Department of Clinical Biochemistry
7. Sandwell General Hospital
8. West Midlands
9. The Australian Wine Research Institute
10. Glen Osmond
11. Australia
12. LGC
13. Charing Cross Hospital
14. London
15. Istituto Superiore di Sanitá
16. 00161 Roma
17. Italy