Text and Data Mining valid from 2018-11-06
Received: 10 February 2018
Accepted: 16 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: The study was approved by Hospital Príncipe de Asturias Ethical Committee of Clinical Research in Alcala de Henares, Madrid, Spain (PROTOCOL NUMBER 26/2010). Consent to participate was obtained from all participants.
: Not applicable
: The authors declare that they have no competing interests.
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