- Correspondence to Dr Gustavo C Machado, School of Public Health, Sydney Medical School, The University of Sydney;
- Accepted 26 July 2017
- Published in print 1 January 2018.
- Published first 22 August 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.