- Correspondence to Dr Cristiano Carbonelli, Pulmonology Unit, Department of Cardiology, Thoracic and Vascular Surgery and Critical Care Medicine, Azienda Ospedaliera ASMN, Istituto di Ricovero e Cura a Carattere Scientifico, Viale Risorgimento 80, Reggio Emilia 42123, Italy;
- Received April 3, 2013
- Accepted April 12, 2013
- First published May 18, 2013.
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