Article History
Received: 5 July 2018
Accepted: 17 August 2018
First Online: 3 September 2018
Compliance with ethical standards
: Ethical approval for this study was granted by the Faculty of Science Research Ethics Committee, Trinity College Dublin.
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.