Funding for this research was provided by:
Instituto de Salud Carlos III (PI12-01232 and PI15-00626)
Text and Data Mining valid from 2018-11-09
Received: 8 August 2018
Accepted: 21 October 2018
First Online: 9 November 2018
Ethics approval and consent to participate
: The study was approved by the Hospital Ethics Committee (HGUSL) and was carried out in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Written informed consent was obtained from all the patients.
: Not applicable
: The authors declare that they have no competing interests.
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