ABA	Abatacept
ACPA	anti-cyclic citrullinated peptide antibodies
ACR	American College of Rheumatology
bDMARDs	Biologic disease-modifying antirheumatic drugs
BT	biological therapy
CRP	C-reactive protein
csDMARDs	conventional synthetic disease-modifying antirheumatic drugs
CTLA-4	cytotoxic T-lymphocyte-associated antigen 4
DAS28	28-joints Disease Activity Score
DMARDs	disease-modifying antirheumatic drugs
ESR	erythrocyte sedimentation rate
EULAR	European League Against Rheumatism
GC	glucocorticoid
HAQ	Health Assessment Questionnaire score
IV	intravenous
LDA	Low-activity disease
LFN	leflunomide
MTX	methotrexate
NIJ	number of inflamed joints
NPJ	number of painful joints
PVAS	patient’s visual analogue scale
RA	rheumatoid arthritis
RF	rheumatoid factor
SC	subcutaneous
TNFi	tumor necrosis factor inhibitor
tsDMARDs	targeted synthetic disease-modifying antirheumatic drugs