Porrero, J. L.
Cano-Valderrama, O.
Article History
Received: 13 May 2019
Accepted: 18 May 2019
First Online: 27 May 2019
Compliance with ethical standards
:
: J. L. Porrero and O. Cano-Valderrama declare that they have no conflict of interest.
: This study was reviewed and approved by the Intitutional Review Board.
: 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.
: For this type of study, formal consent was not necessary.
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