Sotgiu Giovanni, Pontali Emanuele, Migliori Giovanni Battista
Clinical Epidemiology and Medical Statistics Unit, Dept of Biomedical Sciences, University of Sassari, Research, Medical Education and Professional Development Unit, Sassari, Italy.
Dept of Infectious Diseases, Galliera Hospital, Genoa, Italy.
Eur Respir J. 2015 Jan;45(1):25-9. doi: 10.1183/09031936.00145014.