About the Authors

Peter Joseph Jongen

ms4ri@kpnmail.nl

Affiliation MS4 Research Institute, Nijmegen, The Netherlands

Keith Wesnes

Affiliation Bracket, Goring-on-Thames, United Kingdom; Swinburne University, Melbourne, Australia

Björn van Geel

Affiliation Medisch Centrum Alkmaar, Alkmaar, The Netherlands

Paul Pop

Affiliation Viecuri Medisch Centrum, Venlo-Venray, The Netherlands

Evert Sanders

† Deceased.

Affiliation Amphia Ziekenhuis, Breda, The Netherlands

Hans Schrijver

Affiliation Westfries Gasthuis, Hoorn, The Netherlands

Leo H. Visser

Affiliation St. Elisabeth Ziekenhuis, Tilburg, The Netherlands

H. Jacobus Gilhuis

Affiliation Reinier de Graaf Gasthuis, Delft, The Netherlands

Ludovicus G. Sinnige

Affiliation Medisch Centrum Leeuwarden, Leeuwarden, The Netherlands

Augustina M. Brands

Affiliation Department of Experimental Psychology, Utrecht University, The Netherlands; Zuwe Hofpoort Ziekenhuis/Regionaal Psychiatrisch Centrum Woerden, The Netherlands

and the COGNISEC study group

Membership of the CAPEDP Study Group is provided in the Acknowledgments.

Competing Interests

Peter Joseph Jongen has received honoraria from Allergan, Almirall, Biogen-Idec, Merck-Serono, Novartis, sanofi-aventis, and Teva for contributions to symposia as a speaker or for consultancy activities. Keith Wesnes is also an employee of Bracket, and has acted as a consultant to Astellas, Roche and Bristol Myers Squibb. Leo H. Visser has received honoraria from Merck-Serono, Novartis and Genzyme for contributions to symposia as a speaker or for consultancy activities. 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: PJJ KW AMB. Performed the experiments: BvG PP ES HS LHV HJG LGS AMB. Analyzed the data: PJJ KW. Contributed reagents/materials/analysis tools: KW AMB. Wrote the paper: PJJ. Substantial contributions to conception and design, acquisition of data, or analysis and interpretation of data: PJJ KW BvG PP ES HS LHV HJG LGS AMB. Drafting the article or revising it critically for important intellectual content: PJJ KW BvG PP ES HS LHV HJG LGS AMB. Final approval of the version to be published: PJJ KW BvG PP ES HS LHV HJG LGS AMB. Revision: PJJ KW AMB.