WHO:Infant and young child feeding, http://www.who.int/mediacentre/factsheets/fs342/en/(2015.10.23 アクセス)
UNICEF : Adopting optimal feeding practices is fundamental to a child's survival, growth and development, but too few children benefit, http://deta.unicef.org/nutrition/iycf.html.(2015.10.23 アクセス)