About the Authors

Egil A. J. Fischer

Current address: Central Veterinary Institute, Lelystad, The Netherlands

Affiliation Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

Sake J. de Vlas

Affiliation Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

J. Dik F Habbema

Affiliation Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

Jan Hendrik Richardus

j.richardus@erasmusmc.nl

Affiliation Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EAJF SJdV JDFH JHR. Performed the experiments: EAJF SJdV. Analyzed the data: EAJF SJdV JDFH JHR. Contributed reagents/materials/analysis tools: SJdV. Wrote the paper: EAJF SJdV JDFH JHR.