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In persons without rheumatoid arthritis, elevated blood levels of rheumatoid factor are associated with an increased risk of developing rheumatoid arthritis. BMJ 2012;345:e5244    (retrieved Sep, 2012). There are currently 1090 pearls in the database. While every attempt has been made to ensure accuracy, mistakes can and do occur. Use databank at your own risk. All pearls © 2024 by the Internet Medical Association. Click Here to view more medical pearls.