Autoantibody measures in 5 scandinavian cohorts 6900+ RA pts Four cit-peptides w/ high frequency Cit Fibb36-52 (51%) Cit Fibb60-74-Cit3 (59%) Cit Fil307-324 (54%) Cit Vim60-75-Cit1 (63%) Capture 97% of IgG CCP2+ & 22% IgG CCP2- 42% of all pts + IgG anti-Carb or Acet peptides… https://t.co/yYr6AzgipM https://t.co/6dP6Sgi3yB