In the January 2005 article by Vernon and Mrozek titled “A revised definition of manipulation,” acknowledgement of permission to use Figures 1 and 3 was not included in the published paper. This acknowledgement had been kindly given by the author, Dr Ray Sandoz, and the Association of Swiss Chiropractors for reprinting these figures from: Sandoz R. Some physical mechanisms and effects of spinal adjustments. Ann Swiss Chirop Assoc 1976;6:91-142. It was Dr Sandoz's wish that the title of Figure 3 be amended from the original. The correct figure title should read “Adjustment of the metacarpal-phalangeal joint under axial stretch.”

In the March/April 2005 article by Ferrantelli et al titled “Conservative treatment of a patient with previously unresponsive whiplash-associated disorders using Clinical Biomechanics of Posture rehabilitation methods,” the fourth author was incorrectly identified. The correct affiliation is Denis Stewart, MD, private practice of radiology, New Port Richey, Fla.

We apologize for these errors and regret any misunderstandings that they may have caused.