Funding for this research was provided by:
Inter-American Institute for Global Change Research (IAI CRN3036)
Grand Challenges Canada (0335-04)
Fogarty International Center (D71TW010877, R21TW009982)
Medical Research Council (MR/M007405/1)
Wellcome Trust (205177/Z/16/Z)
International Development Research Centre (106887)
Economic and Social Research Council (ES/P00346/X/1)
National Cancer Institute (1P20CA217231)
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (40P740-160366)
National Heart, Lung, and Blood Institute (HHSN268200900033C, 5U01HL114180)
Received: 20 February 2018
Accepted: 22 February 2019
First Online: 4 March 2019
Ethics approval and consent to participate
: No personal information was used in this analysis, and no attempts were made to identify subjects surveyed. All data used in this study was anonymous. No human subjects were included in the study; therefore, we did not request approval from any ethics committee and there was no need for informed consents.
: The authors declare that they have no competing interests.
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