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Increasing incidence of autoantibody-negative RA is replicated and is partly explained by an aging population.
Xanthe Marijn Edmée Matthijssen
Thomas Wj Huizinga
Annette H M van der Helm van Mil
Published in:
Annals of the rheumatic diseases (2020)
Keyphrases
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rheumatoid arthritis
risk factors
disease activity
ankylosing spondylitis