About the Authors

Vaclav Fidler

v.fidler@umcg.nl

Affiliation Department of Epidemiology, University of Groningen, University Medical Center Groningen, the Netherlands

Nico Nagelkerke

Affiliations Institute of Public Health, United Arab Emirates University, UAE, Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada, Department of Public Health, Erasmus Medical Center, Rotterdam, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Designed the software used in analysis: VF NN. Analyzed the data: VF NN. Wrote the paper: VF NN.