Article Information
vol. 38 no. 2 248-250
PubMed
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History
- Published online July 31, 2011.
Copyright & Usage
©ERS 2011
Author Information
- P. Comba⇓,
- L. Fazzo and
- A. Zona
- Dept of Environment and Primary Prevention, Istituto Superiore di Sanità, Rome, Italy
- P. Comba, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, I-00161, Italy. E-mail: pietro.comba{at}iss.it