1. Altman R, Asch E, Bloch D, Bole G, Borenstein D, Brandt K et al (1986) Development of criteria for the classification and reporting of osteoarthritis. Diagnostic and therapeutic criteria committee of the American rheumatism association. Arthritis Rheum 29(8):1039–1049
2. Keuttner KE, Goldberg VM (1995) Osteoarthritic disorders. American Academy of Orthopedic Surgeons, Rosemont.
3. Woolf AD, Pfleger B (2003) Burden of major musculoskeletal conditions. Bull World Health Organ 81(9):646–656
4. Rabenberg M (2013) Gesundheitsbericht des Bundes. Robert Koch Institut, Berlin (Heft 54)
5. Hannan MT, Felson DT, Pincus T (2000) Analysis of the discordance between radiographic changes and knee pain in osteoarthritis of the knee. J Rheumatol 27(6):1513–1517