Bidirectional association between migraine and rheumatoid arthritis: two longitudinal follow-up studies with a national sample cohort.
Zephaniah Phillips VJung Woo LeeYerim KimJong Seok BaeYeo Jin KimChanyang MinHyo Geun ChoiPublished in: BMJ open (2021)
Migraine increases the risk of RA, and RA is also associated with an increased risk of migraine.