Correction: Experienced sitting-related problems and association with personal, lesion and wheelchair characteristics in persons with long-standing paraplegia and tetraplegia

Following publication of this article, the authors noticed that incorrect affiliations were assigned to the author M. W. M. Post. This authors affiliations have now been corrected to the following: 8. University of Groningen, University Medical Center Groningen, Center for Rehabilitation, Groningen, The Netherlands 9. Center of Excellence for Rehabilitation Medicine, Brain Center Rudolf Magnus, University Medical Center Utrecht and De Hoogstraat Rehabilitation, Utrecht, The Netherlands This has been corrected in both the PDF and HTML versions of the article