Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article.
aDepartment of Internal Medicine I, Klinikum Saarbrücken, Saarbrücken D-66119, Germany
bDepartment of Psychosomatic Medicine, Technische Universität München, München D-81675, Germany
cRheumatology Medical Practice, Neunkirchen 66538, Germany
dDepartment of Psychosomatic Medicine, MediClin Bliestal Kliniken, Blieskastel 66440, Germany
ePsychosomatic Medicine and Pain Therapy Medical Practice, Zweibrücken 66432, Germany
fDepartment of Internal Medicine V (Integrative Medicine), Kliniken Essen-Mitte, Essen 45726, Germany
gCentre of Clinical Psychology and Rehabilitation, University of Bremen, Bremen 28359, Germany
hDepartment of Orthopedics, Rehabilitation Centre Oldenburg, Oldenburg 26133, Germany
iDepartment of Rheumatology, Knappschaftskrankenhaus Püttlingen, Püttlingen 66346, Germany
jDepartment of Physical Medicine and Rehabilitation, Klinikum der Universität München, München 80336, Germany
kDepartment of Medical Psychology and Medical Sociology, Universität Leipzig, Leipzig D-04103, Germany
*Corresponding author. Address: Department of Internal Medicine, Klinikum Saarbrücken gGmbH, Winterberg 1, Saarbrücken D-66119, Germany. Tel.: +49 681 9632020; fax: +49 681 9632022.
E-mail address: [email protected]
Submitted January 29, 2013; revised March 13, 2013; accepted March 26, 2013.
