Funding for this research was provided by:
Engineering and Physical Sciences Research Council (EP/M507842/1)
Velindre NHS Trust (2016/01)
Text and Data Mining valid from 2018-04-11
Received: 2 December 2017
Accepted: 23 March 2018
First Online: 11 April 2018
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the instituitional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Institutional Review Board approval was granted and requirement for informed consent was waived.
: Not applicable.
: The authors declare they have no competing interests.
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