aDivision of Population Health and Genomics, School of Medicine, University of Dundee, Dundee, Scotland
bGeneral Practice Research Unit, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
cDivision of Clinical Psychology and Psychotherapy, Department of Psychology, Philipps-University Marburg, Marburg, Germany
dDepartment of Neurophysiology, CBTM, Medical Faculty Mannheim of Heidelberg University, Mannheim, Germany
*Corresponding author. Address: Department of Neurophysiology, Centre for Biomedicine and Medical Technology Mannheim, Medical Faculty Mannheim, Heidelberg University, Ludolf-Krehl-Str.13-17, 68167 Mannheim, Germany. Tel.: +49 (0)621 383 71 400; Fax: +49-(0)621 383 71 401. E-mail address: Rolf-Detlef.Treede@medma.uni-heidelberg.de (R.-D. Treede).
Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article.
B.H. Smith, E.A. Fors, B. Korwisi, and A. Barke contributed equally to the manuscript; R.-D. Treede and W. Rief also contributed equally.
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