Cite
MLA Citation
Shailaja S Bhatia et al.. “Rheumatoid factor seropositivity is inversely associated with oral contraceptive use in women without rheumatoid arthritis.” Annals of the rheumatic diseases, vol. 66, no. 2, 2007, pp. 267–269. http://access.bl.uk/ark:/81055/vdc_100135157984.0x000057