TY - GEN AU - Herrero-Beaumont,Gabriel AU - Roman-Blas,Jorge A AU - CastaƱeda,Santos AU - Jimenez,Sergio A TI - Primary osteoarthritis no longer primary: three subsets with distinct etiological, clinical, and therapeutic characteristics SN - 1532-866X PY - 2009///1211 KW - Aging KW - Cartilage, Articular KW - pathology KW - Chondrocytes KW - Estrogens KW - deficiency KW - Female KW - Genetic Predisposition to Disease KW - Humans KW - Male KW - Menopause KW - physiology KW - Osteoarthritis KW - classification N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Review UR - https://doi.org/10.1016/j.semarthrit.2009.03.006 ER -