- Correspondence to Dr Mario Olivieri, Unità Operativa di Medicina del Lavoro, Azienda Ospedaliera Universitaria Integrata Verona, Ospedale Policlinico ‘G. Rossi’, Piazzale L. A. Scuro, 10, Verona 371234, Italy;
- Received August 13, 2012
- Revised April 3, 2013
- Accepted April 20, 2013
- First published May 17, 2013.
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