Comparing the disease course of patients with seronegative and seropositive rheumatoid arthritis fulfilling the 2010 ACR/EULAR classification criteria in a treat-to-target setting: 2-year data from the ARCTIC trial
Author(s):
Nordberg, L.B.; Lillegraven, S.; Aga, A.B.; Sexton, J.; Olsen, I.C.; Lie, E.; Hammer, H.B.; Uhlig, T.; Heijde, D. van der; Kvien, T.K.; Haavardsholm, E.A.
