1. Ahlback, S. and Rydberg, J. X-ray classification and examination technics in gonarthrosis in Swedish.;Lakartidningen,1980
2. Bellamy, N., Buchanan, WW., Goldsmith, CH., Campbell, J. and Stitt, LW. Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee.;J Rheumatol,1988
3. Insall, JN., Dorr, LD., Scott, RD. and Scott, WN. Rationale of the Knee Society clinical rating system.;Clin Orthop Relat Res,1989
4. Cejku, M., Tobin, JD., Scott, WW Jr. Reichle, R., Plato, CC. and Hochberg, MC. The relationship of age and gender to prevalence and pattern of radiographic changes of osteoarthritis of the knee: data from Caucasian participants in the Baltimore Longitudinal Study of Aging.;Aging (Milano),1994
5. Park, JH., Lim, S., Lim, J., Kim, K., Han, M., Yoon, IY., Kim, J., Chang, Y., Chang, CB., Chin, HJ., Choi, EA., Lee, SB., Park, YJ., Paik, N., Kim, TK., Jang, HC. and Kim, KW. An overview of the Korean longitudinal study on health and aging (KLoSHA).;Psychiatr Invest,2007