title: Comment on the articles by Firestein and Zvaifler.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D007371:Interferon-gamma / Q000502:physiology*; D009000:Monocytes / Q000502:physiology*
chemical_list: D007371:Interferon-gamma