1. Osteoarthritis in patients and populations;Kellgren, J.H.;BMJ
2. Guidelines for the medical management of osteoartbritis;Hochberg, M.C.; Altman, R.D.; Brandt, K.D.; Clark, B.M.; Dieppe, P.A.; Griffin, M.R.;Part I. Osteoarthritis of the hip. Arthritis Rheum,1995
3. Guidelines for the medical management of osteoarthritis. Part II. Osteoarthritis of the knee;Hochberg, M.C.; Altman, R.D.; Brandt, K.D.; Clark, B.M.; Dieppe, P.A.; Griffin, M.R.;Arthritis Rheum,1995
4. Epidemiology of osteoarthritis: Zoetermeer survey. Comparison of radiological osteoarthritis in a Dutch population with that in 10 other populations;JLCM, Van Saase; LKJ, Van Romunde; A, Cats; JP, Vandenbroucke; HA, Valkenburg,1989
5. Knee pain is the malady-not osteoarthritis;Hadler, N.;Ann Intern Med,1992