title: Rheumatoid arthritis: treatment options when a biologic agent fails.  Switching the type of drug administered can be a game-changer.
mesh_terms: D018501:Antirheumatic Agents; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D001685:Biological Factors; D006801:Humans
chemical_list: D018501:Antirheumatic Agents; D001685:Biological Factors