title: Osteoarthritis of the knee: Topical NSAIDs have unknown effectiveness.
authors.forename: Peter C
authors.initials: PC
authors.lastname: Gøtzsche
mesh_terms: D000287:Administration, Topical; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage*; D006801:Humans; D020370:Osteoarthritis, Knee / Q000188:drug therapy*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal