Funding for this research was provided by:
National Institute for Health Research
Text and Data Mining valid from 2017-04-21
Received: 4 August 2016
Accepted: 10 April 2017
First Online: 21 April 2017
Compliance with ethical standards
: This article does not contain any studies with human participants or animals performed by any of the authors.
: The authors declare that they have no conflict of interest.