Allen, K. D., Oddone, E. Z., Coffman, C. J., Datta, S. K., Juntilla, K. A., Lindquist, J. H., Walker, T. A., Weinberger, M., Bosworth, H. B. Telephone-based self-management of osteoarthritis: A randomized trial. Annals of Internal Medicine 2010; 9: 570-9