title: Hardness of the subchondral bone of the tibial condyles in the normal state and in osteoarthritis and rheumatoid arthritis.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000503:physiopathology*; D001696:Biomechanical Phenomena; D005260:Female; D006245:Hardness Tests; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000503:physiopathology*; D013977:Tibia / Q000502:physiology / Q000503:physiopathology* / Q000601:surgery; D013997:Time Factors