Funding for this research was provided by:
Royal Holloway University of London
Article History
First Online: 14 February 2020
Compliance with Ethical Standards
: The study received full ethical approval from the London – Dulwich Research Ethics Committee and Royal Holloway, University of London.
: 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 an institutional and a national research ethics committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.