Funding for this research was provided by:
Received: 26 September 2016
Accepted: 21 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: This study was approved by the Medical Ethics Committee of the institution in 7 dec, 2015 (n. 1.356.401) and consent to participate is attached below.
: Not available.
: The authors declare that they have no competing interests.
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