title: Re: Karlsson et al. Comparison of two hyaluronan drugs and placebo in patients with knee osteoarthritis. A controlled, randomized, double-blind, parallel-design multicentre study.
mesh_terms: D006801:Humans; D006820:Hyaluronic Acid / Q000031:analogs & derivatives / Q000627:therapeutic use*; D007270:Injections, Intra-Articular; D020370:Osteoarthritis, Knee / Q000188:drug therapy*; D016896:Treatment Outcome
chemical_list: C049816:hylan; D006820:Hyaluronic Acid