title: Coffee or decaff?
authors: S E
authors: SE
authors: Grober
mesh_terms: D001172:Arthritis, Rheumatoid / Q000209:etiology*; D002110:Caffeine / Q000009:adverse effects*; D003069:Coffee / Q000009:adverse effects*; D006801:Humans; D012217:Rheumatoid Factor / Q000097:blood
chemical_list: D003069:Coffee; D002110:Caffeine; D012217:Rheumatoid Factor