About the Authors

Niels G. Becker

Niels.Becker@anu.edu.au

Affiliation National Centre for Epidemiology and Population Health, The Australian National University, Canberra, Australian Capital Territory, Australia

Dingcheng Wang

Affiliation National Centre for Epidemiology and 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: NGB. Analyzed the data: DW. Wrote the paper: NGB. Formulated the problems, provided the method of solution (including the equations), supervised the direction of the analysis, and wrote the manuscript: NGB. Wrote the computer code to solve the equations, prepared the graphs/figures, and proposed the methodology (and its implementation) that led to Figure 6: DW.