title: How do the new injections for arthritis of the knee work, and who is a good candidate for this treatment?
mesh_terms: D006801:Humans; D006820:Hyaluronic Acid / Q000627:therapeutic use*; D007270:Injections, Intra-Articular; D007719:Knee Joint; D010003:Osteoarthritis / Q000628:therapy*
chemical_list: D006820:Hyaluronic Acid