1. Australian Government Department of Health and Ageing "Schedule of pharmaceutical benefits for approved pharmacists and medical practitioners. Effective 1 March 2014 - 31 March 2014: Commonwealth of Australia; 2014. Available from: http://www.pbs.gov.au/browse/publications [Accessed 2 September 2016]".
2. Australian Government Department of Health Therapeutic Goods Administration. (2016). "Codeine re-scheduling.Regulation impact statement. Version 1.1, December 2016." Retrieved July 3 2019, from https://www.tga.gov.au/sites/default/files/regulation-impact-statement-codeine-re-scheduling.pdf.
3. Australian Government Department of Veterans' Affairs, D. (2019). "Treatment population statistics."Statistics about the veteran population, 14 January 2019, from https://www.dva.gov.au/about-dva/statistics-about-veteran-population#ataglance.
4. "A critical review of methods to evaluate the impact of FDA regulatory actions;Briesacher;Pharmacoepidemiology and Drug Safety,2013
5. "84 The impact of a regulatory nudge on the overuse of low dose codeine in manitoba, canada;Bugden;BMJ Evidence-Based Medicine,2018