Ankylosing apondylitis is associated with ?: (A) HLA-B27, (B) HLA-B-8, (C) HLA - DW4/DR4, (D) HLA - DR3
Answer is A. Ans. is 'a' i.e., HLA-B27 There is strong correlation with HLA-B27 90-95% of cases are positive for HLA - B27.