SHOULD ACPA STATUS BE REASSESSED IN PATIENTS WITH EARLY ARTHRITIS: RESULTS FROM FOLLOW-UP EXAMINATIONS IN PATIENTS WITH ARTHRITIS OF LESS THAN 16 WEEKS DURATION
Author(s):
Mjaavatten, M.D.; Heijde, D. van der; Uhlig, T.; Haugen, A.J.; Nygaard, H.; Sidenvall, G.; Helgetveit, K.; Kvien, T.K.