Parity and the risk of developing rheumatoid arthritis: results from the Swedish Epidemiological Investigation of Rheumatoid Arthritis study

ANNALS OF THE RHEUMATIC DISEASES

BMJ PUBLISHING GROUP

1. Swedish Medical Research Council
2. Swedish Council for Working Life and Social Research
3. King Gustav V's 80-year Foundation
4. Swedish Rheumatic Foundation
5. Stockholm County Council
6. Insurance Company AFA
7. Innovative Medicines Initiative
8. Controlling Chronic Inflammatory Diseases with Combined Efforts project
9. National Institutes of Health (NIH) [AR047782]