1. Newcastle University, Stephenson
Building, Claremont Road, Newcastle
upon Tyne NE1 7RU, UK.
2. Wolfson Unit, Newcastle University, Claremont
Place, Newcastle upon Tyne NE2 4HH, UK.
3. Newcastle University, Medical
Toxicology Centre, Newcastle upon Tyne NE2 4AA, UK.
4. University Hospital of North Tees, Stockton
TS19 8PE, UK.