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Authors
BenÃtez-Burraco, Antonio https://orcid.org/0000-0003-4574-5666
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Article History
Received: 24 August 2020
Accepted: 13 November 2020
First Online: 6 January 2021
Compliance with ethical standards
:
: The author declares no conflicts of interests or competing interests.
: This is a retrospective study conducted on already available data. The author assumes that the cited studies were approved by the appropriate institutional and/or national research ethics committees, and that were performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
