Funding for this research was provided by:
Eurostars-2 (PERSONAL, 9809)
Text and Data Mining valid from 2018-12-10
Received: 28 August 2018
Accepted: 30 November 2018
First Online: 10 December 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Formal consent is not required for this type of study.
: Informed consent was obtained from all individual participants included in the study.
: This article does not contain any studies involving animals performed by any of the authors.