Monticone, Marco
Capone, Antonio
Frigau, Luca
Marongiu, Giuseppe
Abelli, Paola
Mola, Francesco
Maffulli, Nicola http://orcid.org/0000-0002-5327-3702
Foti, Calogero
Article History
Received: 15 February 2018
Accepted: 27 March 2018
First Online: 11 April 2018
Ethics approval and consent to participate
: This cross-sectional study was approved by the Local Ethics Committee of the University of Cagliari and conducted in accordance with ethical and humane principles of research.
: The authors declare that they have no competing interests.
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