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(A) IgA levels in milk from Ccl28+/+ WT, Ccl28+/− heterozygote, or Ccl28−/− mice. (B) IgA levels in feces from Ccl28+/+ WT, Ccl28+/− heterozygote, or Ccl28−/− mice. (C) IgA levels in serum from Ccl28+/+ WT, Ccl28+/− heterozygote, or Ccl28−/− mice. Shown is a representative experiment (out of 3). **P < 0.01; ****P < 0.001.
