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https://www.aap.org/en-us/advocacy-and-policy/aap-health-initiatives/HALF-Implementation-Guide/Age-Specific-Content/pages/infant-food-and-feeding.aspx
. Accessed 1 Aug 2015
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http://www.cdc.gov/breastfeeding/pdf/2014breastfeedingreportcard.pdf
. Accessed 5 Aug 2015
4. Centers for Disease Control and Prevention (2013) Behavioral risk factor surveillance system: adult obesity data.
http://www.cdc.gov/brfss/
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