Funding for this research was provided by:
Grand Challenges Canada (TTS – 1803-22331)
Australian National Health and Medical Research Council (GNT1100147)
Received: 16 May 2019
Accepted: 5 July 2019
First Online: 23 July 2019
Consent for publication
: The study participants are given an oral or written plain language description of the study and are asked to sign a consent form. Those who cannot write provide a thumbprint or verbal consent witnessed by an independent observer.
: The authors declare that they have no competing interests.