Funding for this research was provided by:
Italian Ministry of Health (IZSUM 03/14 RC)
Text and Data Mining valid from 2018-08-02
Received: 21 November 2017
Accepted: 26 July 2018
First Online: 2 August 2018
Ethics approval and consent to participate
: The study was conducted in accordance with the European recommendations for the protection of animals used for scientific purposes (EU Directive 2010/63/EU) and approved by the Italian Ministry of Health (Authorisation n. 506/2016 – PR).
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.