Funding for this research was provided by:
Instituto de Salud Carlos III (FIS PI13/01768)
Text and Data Mining valid from 2019-04-24
First Online: 24 April 2019
Compliance with Ethical Standards
: Teresa Bellón has no conflicts of interest that are directly relevant to the content of this review.
: This work was supported by Grant FIS PI13/01768 from Instituto de Salud Carlos III (co-founded by FEDER).