Atrial fibrillation and rheumatoid arthritis are cardiovascular risk factors. Hippisley-Cox, J., Coupland, C., Robson, J., & Brindle, P. BMJ (Clinical research ed.), 344:e2259, 2012.
bibtex   
@article{hippisley-cox_atrial_2012,
	title = {Atrial fibrillation and rheumatoid arthritis are cardiovascular risk factors},
	volume = {344},
	issn = {1756-1833},
	language = {eng},
	journal = {BMJ (Clinical research ed.)},
	author = {Hippisley-Cox, Julia and Coupland, Carol and Robson, John and Brindle, Peter},
	year = {2012},
	pmid = {22453881},
	keywords = {Arthritis, Rheumatoid, Atrial Fibrillation, Female, Humans, Male, stroke},
	pages = {e2259}
}

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