Text and Data Mining valid from 2018-07-20
Received: 26 April 2018
Accepted: 23 June 2018
First Online: 20 July 2018
Ethics approval and consent to participate
: The study project was approved by the Ethic Committee at the University of Tor Vergata (protocol number: 24759). A written consent, signed by the parents of all the subjects involved in this study, was recorded.
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