About the Authors

Sietske J. Tamminga

S.J.Tamminga@amc.uva.nl

Affiliation Coronel Institute of Occupational Health, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands

Jos H. A. M. Verbeek

Affiliations Coronel Institute of Occupational Health, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands, Finnish Institute of Occupational Health, Kuopio, Finland

Monique M. E. M. Bos

Affiliation Department of Internal Medicine, Reinier de Graaf Groep, Delft, the Netherlands

Guus Fons

Affiliation Department of Gynaecology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands

Jos J. E. M. Kitzen

Affiliation Department of Internal Medicine, Albert Schweitzer Hospital, Dordrecht, the Netherlands

Peter W. Plaisier

Affiliation Department of Surgery, Albert Schweitzer Hospital, Dordrecht, the Netherlands

Monique H. W. Frings-Dresen

Affiliation Coronel Institute of Occupational Health, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands

Angela G. E. M. de Boer

Affiliation Coronel Institute of Occupational Health, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands

Competing Interests

Co-author Angela de Boer is a PLOS ONE Editorial Board member and Jos Verbeek has done so in the past. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ST JV MF AdB. Performed the experiments: ST JV MB GF JK PP MF AdB. Analyzed the data: ST JV MF AdB. Wrote the paper: ST JV MF AdB.