Text and Data Mining valid from 2018-03-01
Received: 22 December 2017
Accepted: 20 February 2018
First Online: 1 March 2018
Ethics approval and consent to participate
: This protocol was approved by the Bioethical Committee of “Regione Liguria”. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
: Not applicable
: The authors declare that they have no competing interest.
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