The challenges of medically complex breastfed children and their families: A systematic review.

Matern Child Nutr · 2021 · PMC8476405 · PMID 33955145

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may be significantno p-value reported

The papers in this study had limited numbers of low‐SES families, which may be significant as these problems will have the greatest negative impact on vulnerable and low‐income families (Beck et al., 2017 ; Thomson et al., 2016 ).

also in 13,097 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.