About the Authors

Timothy P. Schofield

timothy.schofield@anu.edu.au

Affiliation Centre for Research on Ageing, Health & Wellbeing, Research School of Population Health, The Australian National University, Canberra, Australian Capital Territory, Australia

Peter Butterworth

Affiliation Centre for Research on Ageing, Health & Wellbeing, Research School of Population Health, The Australian National University, Canberra, Australian Capital Territory, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TS PB. Analyzed the data: TS. Contributed reagents/materials/analysis tools: TS PB. Wrote the paper: TS PB.