White, D. K., Felson, D. T., Niu, J., Nevitt, M. C., Lewis, C. E., Torner, J. C., & Neogi, T. (2011). Reasons for Functional Decline Despite Reductions in Knee Pain: The Multicenter Osteoarthritis Study. American Physical Therapy Association.

White, Daniel K., David T. Felson, Jingbo Niu, Michael C. Nevitt, Cora E. Lewis, James C. Torner, ja Tuhina Neogi. Reasons for Functional Decline Despite Reductions in Knee Pain: The Multicenter Osteoarthritis Study. American Physical Therapy Association, 2011.

White, Daniel K., et al. Reasons for Functional Decline Despite Reductions in Knee Pain: The Multicenter Osteoarthritis Study. American Physical Therapy Association, 2011.