title: Smoking, rheumatoid factors, and rheumatoid arthritis.
authors.forename: D A
authors.initials: DA
authors.lastname: Houssien
authors.forename: D L
authors.initials: DL
authors.lastname: Scott
authors.forename: T
authors.initials: T
authors.lastname: Jonsson
mesh_terms: D000368:Aged; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012217:Rheumatoid Factor / Q000032:analysis*; D012907:Smoking / Q000009:adverse effects*
chemical_list: D007070:Immunoglobulin A; D012217:Rheumatoid Factor