Article Information
vol. 38 no. 2 486-487
PubMed
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History
- Published online July 31, 2011.
Copyright & Usage
©ERS 2011
Author Information
- C.M. Barber⇓,
- C. Burton,
- E. Robinson,
- B. Crook,
- G. Evans and
- D. Fishwick
- Health and Safety Laboratory, Buxton, UK
- C.M. Barber, Health and Safety Laboratory, Harpur Hill, Buxton, Derbyshire, UK. E-mail: chris.barber{at}hsl.gov.uk