title: Heavy cigarette smoking and RA.
authors.forename: A T
authors.initials: AT
authors.lastname: Masi
authors.forename: J C
authors.initials: JC
authors.lastname: Aldag
authors.forename: R L
authors.initials: RL
authors.lastname: Malamet
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000209:etiology*; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012217:Rheumatoid Factor / Q000097:blood; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*
chemical_list: D012217:Rheumatoid Factor