Heavy cigarette smoking and RA.
Masi
A T
AT
Aldag
J C
JC
Malamet
R L
RL
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*
D012217:Rheumatoid Factor