title: Alternative treatments for knee pain.  Are these popular therapies effective or just snake oil?
mesh_terms: D015670:Acupuncture Therapy; D002807:Chondroitin / Q000627:therapeutic use; D000529:Complementary Therapies / Q000379:methods*; D019587:Dietary Supplements; D005944:Glucosamine / Q000627:therapeutic use; D006801:Humans; D020370:Osteoarthritis, Knee / Q000628:therapy*; D059408:Pain Management / Q000379:methods*; D053657:Platelet-Rich Plasma; D055676:Viscosupplementation
chemical_list: D002807:Chondroitin; D005944:Glucosamine