abatacept
activities of daily living (ADL)
activity score
adhesion molecules
adolescent patients
ANCA
angiogenesis
animal models
ankylosing spondylitis (AS)
antibodies
anticardiolipin
anti-CCP antibodies
anti-citrullinated protein/peptide antibodies (ACPA)
antigen-presenting cells
antinucleosome antibodies
antiphospholipid syndrome
anti-TNF therapy
apoptosis
arthrocentesis
arthroplasty
assessment
atherosclerosis
autoantibodies
autoimmune diseases