About the Authors

Berend Terluin

b.terluin@vumc.nl

Affiliation Department of General Practice and Elderly Care Medicine, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands

Michiel R. de Boer

Affiliation Department of Health Sciences and the EMGO Institute for Health and Care Research, Faculty of Earth and Life Sciences, VU University Amsterdam, The Netherlands

Henrica C. W. de Vet

Affiliation Department of Epidemiology & Biostatistics, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BT HdV. Performed the experiments: BT MdB. Analyzed the data: BT. Wrote the paper: BT MdB HdV.