Acknowledgments
We thank all patients who participated in this study and the staff members involved in the trial at the recruiting and coordinating centres. The members of the data and safety monitoring board were Harin Karunajeewa (Chair), Matthew Grigg, and Sophie Zaloumis (statistician), later replaced by Sue Jean Lee. Funding for this study was obtained from the Australian Academy of Science Regional Collaborations Program, Bill & Melinda Gates Foundation (OPP1164105/INV-010504), and National Health and Medical Research Council (GNT1132975).