1. Degradation of proteoglycans in human osteoarthritic cartilage;Altman, R.D.; Pita, J.C.; Howell, D.S.;Arthritis and Rhuematism,1973
2. The composition of the organic component of human articular cartilage;Anderson, C.E.; Ludowieg, J.; Harper, H.A.; Engleman, E.P.;Journal of Bone and Joint Surgery,1964
3. Alteration with age in compliance of human femoral-head cartilage;Armstrong, C.G.; Gardner, D.L.;Lancet,1977
4. Thickness and distribution of human femoral head articular cartilage;Armstrong, C.G.; Gardner, D.L.;Annals ofthe Rheumatic Diseases,1977
5. Fine structure and glycosaminoglycan content of the surface layer of articular cartilage;Balazs, E.A.; Bloom, G.D.; Swann, D.A.;Federation Proceedings,1966