Funding for this research was provided by:
UCL Global Engagement Office
Article History
Received: 8 March 2018
Accepted: 10 May 2018
First Online: 23 May 2018
Compliance with ethical standards
:
: PC is co-investigator on a Janssen Pharma-sponsored study. CV-P and EB declare no conflicts of interest. This review emerged out of collaborative work between the authors that was funded by UCL Global Engagement Funds (provided by the UCL Global Engagement Office).