Although CA 19 − 9 levels were lower and CA 72 − 4 levels were higher in patients than in controls, these differences did not reach statistical significance.
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Serum CA 19 - 9 and CA 72 - 4 levels in hashimoto's thyroiditis: a prospective case-control study.
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The sentences
Antibody titers (TPOAb and TgAb) showed a decreasing trend, but this change was not statistically significant.