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Maternal microchimerism (MMc) expressed as microchimeric equivalents per infant genomic equivalents (gEq) assessed. ND, not detected; EBF, exclusively breastfed; NBF, nonexclusively breastfed. (A) Detection of MMc in infants at day 1, week 7, and week 15 of life by mode of feeding. (B) Level of MMc across infancy by mode of feeding.
