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Significant associations between calculated daily intakes (CDI) of skim milk leptin. (a) Infant body mass index; (b) infant fat-free mass index measured with ultrasound 4-skinfolds (US 4SF); (c) infant fat mass with US 2-skinfolds (US 2SF); (d) infant fat mass index with US 2SF; (e) infant fat mass index with US 4SF. Lines represent linear regression and grouped by the month of lactation.
