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Layout table for eligibility information
Ages Eligible for Study:
up to 24 Hours (Child)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
singleton birth with gestational age 37-42 weeks
infant's birth weight >or = to 2500 grams
exclusive breastfeeding or exclusively formula feeding
within a defined geographical boundary
mother has no problems communicating in English
adverse maternal, fetal or infant medical history
congenital disease or malformation affecting growth or development