Funding for this research was provided by:
Fundación de Investigación Hospital Universitario Puerta de Hierro
Text and Data Mining valid from 2018-08-20
Received: 11 April 2018
Accepted: 13 August 2018
First Online: 20 August 2018
Ethics approval and consent to participate
: The protocol was reviewed and approved by the Research Ethics Committee at Hospital Puerta de Hierro, by July 22Superscript removed2018, and by the national regulatory authority (AEMPS). Written informed consent was obtained from guardians after the procedure(s) had been fully explained.
: Not applicable.
: The authors declare that they have no competing interests.
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