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Least-squares mean ± s.e. delay of inspiration relative to the swallow (in seconds) for infants feeding on milk from a bottle (at 7, 17 and 20 days of age), milk from a bowl (at Days 20+) and solid food from a bowl (at Days 20+). Brackets show which pairwise comparisons are significantly different using Tukey's HSD. Bottle 7 days is different from all other time points, and bowl and chow at 20+ days are different.
