Concordance for myositis-specific autoantibody detection between commercial enzyme-linked immunosorbent assays and line blot assays: a multicentre study conducted across the Asia-Pacific region
OBJECTIVES: Laboratory detection of myositis-specific autoantibodies (MSAs) utilises enzyme-linked immunosorbent assays (ELISA) and multianalyte line blot assays (LBA). We sought to evaluate the concordance and reliability of these two commercial assays. METHODS: Serum samples f…