Turrina, Stefania
Ferrian, Melissa
Caratti, Stefano
Cosentino, Emanuela
De Leo, Domenico
Article History
Received: 3 August 2015
Accepted: 9 November 2015
First Online: 20 November 2015
Compliance with ethical standards
: All individuals tested gave written informed consent, and the study was approved by the Institutional Review Board of the Department of Public Health and Community Medicine, University of Verona.
: The authors declare that they have no competing interests.