title: Knees in need. Arthritis sufferers look for answers after a large study finds that glucosamine and chondroitin are ineffective for many.
mesh_terms: D002807:Chondroitin / Q000627:therapeutic use*; D005944:Glucosamine / Q000627:therapeutic use*; D006801:Humans; D020370:Osteoarthritis, Knee / Q000188:drug therapy*
chemical_list: D002807:Chondroitin; D005944:Glucosamine