Document is current

Article History

Received: 16 June 2020

Accepted: 23 August 2020

First Online: 10 September 2020

Ethics approval and consent to participate

: In this study, the data are anonymized. Authors would like to confirmed that all procedures performed in the research involving participants were in accordance with the ethical standards of the national research committee of Universidad Politécnica de Madrid and its later amendments or comparable ethical standards. The data and also the approval of the ethics committee of Universidad Politécnica de Madrid will be available upon request.

: Authors concent for the publication.

: Data are available upon request.

: The authors declare that they have no competing interests.