1. Lawrence RC, Hochberg MC, Kelsey JL, et al. Estimates of the prevalence of selected arthritic and musculoskeletal diseases in the United States. J Rheumatol 1989; 16:427-431
2. Praemer A, Furner S, Rice DP. Medical implants and major joint procedures. In: Praemer A, Furner S, Rice DP, eds. Musculoskeletal conditions in the United States. Park Ridge, IL: American Academy of Orthopaedic Surgeons, 1992:125-145
3. Radiological Assessment of Osteo-Arthrosis
4. New radiographic grading scales for osteoarthritis of the hand. Reliability for determining prevalence and progression
5. Ahlback S. Osteoarthrosis of the knee: a radiographic investigation. Acta Radiol Diagn (Stockh) 1968 ; [suppl 227]: 7-72