In the article "Effects of Electrical Physical Stimuli on Articular
Cartilage" by Massari et al. (2007;89[Suppl 3]:152-61), the byline
should have read: "By L. Massari, MD, F. Benazzo, MD, M. De Mattei, PhD,
S. Setti, MSc, and M. Fini, MD, on behalf of the CRES study group."