1. Centre for Online Health, The University of Queensland, Brisbane, Australia
2. Centre for Health Services Research, The University of Queensland, Brisbane, Australia
3. Pharmacy Department, The Princess Alexandra Hospital, Brisbane, Australia
4. School of Pharmacy, The University of Queensland, Brisbane, Australia
5. Department of Clinical Pharmacy, University of California, San Francisco, CA, USA
6. University College London, Gower St, Bloomsbury, UK
7. Global Drug Survey Ltd, London, UK
8. School of Public Health, The University of Queensland, Brisbane, Australia