Galán-Rioja, Miguel Ángel http://orcid.org/0000-0002-0204-3122
González-Mohíno, Fernando http://orcid.org/0000-0002-6327-6958
Poole, David C. http://orcid.org/0000-0003-2441-3793
González-Ravé, José Mª http://orcid.org/0000-0001-5953-4742
Article History
First Online: 1 July 2020
Compliance with Ethical Standards
:
: No sources of funding were used in the preparation of this article.
: Miguel Ángel Galán-Rioja, Fernando González-Mohíno, David C. Poole and José María González-Ravé declare that they have no conflicts of interest relevant to the content of this review.