What type of chronic inflammatory condition is this?
A - Precise cause currently unknown.
B - Shown to be caused by a combination of genetic & environmental factors.
C - Most important genetic risk factor for it is found in the human leukocyte antigen (HLA) locus - HLA-DRB1 gene.
D - Testing for rheumatoid factor is the most widely used blood test in the classification of...
E - Individuals in the general population with elevated rheumatoid factor have up to 26-fold greater long-term risk of it.
