Funding for this research was provided by:
Department of International Development, the Economic and Social Research Council, the Medical Research Council and the Wellcome Trust (MR/P013996/1)
Text and Data Mining valid from 2018-09-12
Received: 8 March 2018
Accepted: 10 July 2018
First Online: 12 September 2018
Ethics approval and consent to participate
: Ethical support has been granted by all relevant bodies including: the University of Indonesia (Reference: 503/H2.F10/PPM.00.02/2017); London School of Hygiene & Tropical Medicine (Reference: 13773); and the University of New South Wales (Reference: HC17709).
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.