Funding for this research was provided by:
Progetto di Interesse Nazionale (PRIN) - Italia (20157NH5TP_005)
Fondazione Banco di Sardegna
Article History
Received: 1 April 2017
Accepted: 5 April 2018
First Online: 4 May 2018
Compliance with ethical standards
:
: The author Dimitri Paolini has received research grant from PRIN (Research projects of national interest) by Minister of Education and from Fondazione Banco di Sardegna. The authors G. Meloni and JD. Tena declare that they have no conflict of interest.