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B. Anti-Scl-70 antibody and anti-Smith antibody. C. Anti-Smith antibody and anti-double stranded DNA antibody. D. Rheumatoid factor and anti-double stranded DNA. E. Rheumatoid factor and anti-SS-A antibody. Explanation: The correct answer is E. This patient has Sjögren's syndrome, which is an autoimmune disease characterized ................
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