1. Health Canada Exclusive breastfeeding duration – 2004 Health Canada recommendation Ottawa Health Canada 2004 (Version current at February 24, 2005)
2. Breastfeeding and the use of human milk;American Academy of Pediatrics Section on Breastfeeding;Pediatrics,2005
3. World Health Organization Global strategy for infant and young child feeding The optimal duration of exclusive breastfeeding Geneva World Health Organization 2001 (Version current at February 24, 2005)
4. World Health Organization Promoting proper feeding for infants and young children Geneva World Health Organization 2004 (Version current at February 24, 2005)