Funding for this research was provided by:
Horizon 2020 Framework Programme (734584)
Text and Data Mining valid from 2018-06-06
Received: 30 October 2017
Accepted: 1 May 2018
First Online: 6 June 2018
Ethics approval and consent to participate
: Not applicable.
: JH is an employee of the World Health Organization (WHO), as was KV at the time of this work. AWS is consultant to WHO. The authors alone are responsible for the views expressed in this publication and they do not necessarily represent the decisions or policies of WHO. The authors declare no conflicts of interest.
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