HBB and rheumatoid arthritis: ADAM12, ADAM33, ADORA2B, AKT3, ANXA3, CDKN1C, CTSL1, CUGBP1, CUGBP2, CYP51A1, FGL2, HBB, HSP90AA1, KLRF1, NR1D2, SLC33A1 and THEM2 have no evidence of association with RA and should further be studied.