Text and Data Mining valid from 2019-02-28
Received: 24 November 2018
Accepted: 18 February 2019
First Online: 28 February 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the School <i>of</i> Medicine of the Faculty of Health Sciences of Aristotle University, Thessaloniki, Greece (No: 1.43 / 21-11-2018).
: Not applicable.
: The authors declare that they have no competing interests.
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