Lopez-Leon, Sandra
Lopez-Gomez, Manuel I.
Warner, Barbara
Ruiter-Lopez, Leon
Article History
Received: 27 October 2017
Accepted: 22 December 2017
First Online: 27 June 2018
Compliance with ethical standards
:
: An ethics committee approved the data collected. We received unidentified data and all data is presented in aggregated form.
: All authors give consent for publication.
: The authors declare that they have no competing interests.