La Leche League International

www.llli.org

Breastfeeding.com

www.breastfeeding.com

Jack Newman/Breastfeeding Inc.

http://www.breastfeedinginc.ca/

Infant Risk Center

www.infantrisk.com

Stanford Newborn Nursery Website

http://www.pabreastfeeding.org/breastfeeding-help/

LactMed
http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT

Philadelphia Health Department

http://www.phila.gov/health/MCFH/BreastfeedingPromotion.html