Funding for this research was provided by:
Instituto de Salud Carlos III (PI14/02161, DTS15/00153)
European Regional Development Fund (PI14/02161, DTS15/00153, DPI2015-69948-R, ED431G/01, ED431C 2016-047)
Ministerio de Economía y Competitividad (DPI2015-69948-R)
Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia (ED431G/01, ED431C 2016-047)
Text and Data Mining valid from 2018-11-20
Received: 25 May 2018
Accepted: 30 October 2018
First Online: 20 November 2018
Ethics approval and consent to participate
: The “Comité de Ética da Investigación de A Coruña-Ferrol” committee belonging to the “Rede Galega de Comités de Ética da Investigación” attached to the regional government “Secretaría Xeral Técnica da Consellería de Sanidade da Xunta de Galicia” approved this study (Ref. 2015/501), which was conducted in accordance with the tenets of the Helsinki Declaration. This study was carried out retrospectively on existing data that have previously been anonymized.
: Not applicable.
: The authors declare that they have no competing interests.
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