Low copy numbers of complement C4 and C4A deficiency are risk factors for myositis, its subgroups and autoantibodies.
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Zhou D, et al. Among authors: flegel wa.
Ann Rheum Dis. 2023 Feb;82(2):235-245. doi: 10.1136/ard-2022-222935. Epub 2022 Sep 28.
Ann Rheum Dis. 2023.
PMID: 36171069
Free PMC article.