Esposito, Susanna http://orcid.org/0000-0003-4103-2837
Principi, Nicola
Article History
Received: 27 December 2017
Accepted: 29 January 2018
First Online: 6 February 2018
Compliance with ethical standards
:
: The authors declare that they have no potential conflict of interest.
: Ethical approval was not required for a review article.
: Informed consent was not required for a review article.