About the Authors

Maaike J. de Boer

m.j.de.boer@umcg.nl

Affiliation Pain Center, Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Hannemike E. Steinhagen

Affiliation Pain Center, Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Gerbrig J. Versteegen

Affiliation Pain Center, Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Michel M. R. F. Struys

Affiliation Pain Center, Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Robbert Sanderman

Affiliation Health Psychology Section, Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MJB HS. Performed the experiments: MJB HS. Analyzed the data: MJB HS RS. Contributed reagents/materials/analysis tools: MJB HS GJV. Wrote the paper: MJB HS GJV RS MMRFS.