About the Authors

Peter Collignon

peter.collignon@act.gov.au

Affiliations ACT Pathology, Canberra Hospital, Australian National University, Garran, Australia, Canberra Clinical School, Australian National University, Garran, Australia

Prema-chandra Athukorala

Affiliations Arndt-Corden Department of Economics, Australian National University, Acton, Australia, School of Environment and Development, University of Manchester, Manchester, England

Sanjaya Senanayake

Affiliations Australian National University, Garran, Australia, Canberra Hospital, Garran, Australia

Fahad Khan

Affiliation Arndt-Corden Department of Economics, Australian National University, Acton, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PC PA SS. Performed the experiments: PA FK. Analyzed the data: PC PA SS FK. Contributed reagents/materials/analysis tools: PA. Wrote the paper: PC PA SS FK. Found and used econometric procedures to analyze data: PA FK.