@misc{indiciaeeffd2b234515, title = {Smoking, lung function, and rheumatoid factors.}, author = {T Tuomi and M Heliƶvaara and T Palosuo and K Aho}, year = {1990}, doi = {10.1136/ard.49.10.753}, url = {https://pubmed.ncbi.nlm.nih.gov/2241263/}, note = {Source identifier: 2241263} }