Ip, S; Chung, M; Raman, G; Trikalinos, TA; Lau, J (outubro de 2009). «A summary of the Agency for Healthcare Research and Quality's evidence report on breastfeeding in developed countries.». Breastfeeding Medicine. 4 Suppl 1: S17-30. PMID19827919. doi:10.1089/bfm.2009.0050
Kramer, MS; Kakuma, R (15 de agosto de 2012). «Optimal duration of exclusive breastfeeding.». The Cochrane database of systematic reviews. 8: CD003517. PMID22895934. doi:10.1002/14651858.CD003517.pub2
Ip, S; Chung, M; Raman, G; Trikalinos, TA; Lau, J (outubro de 2009). «A summary of the Agency for Healthcare Research and Quality's evidence report on breastfeeding in developed countries.». Breastfeeding Medicine. 4 Suppl 1: S17-30. PMID19827919. doi:10.1089/bfm.2009.0050
Kramer, MS; Kakuma, R (15 de agosto de 2012). «Optimal duration of exclusive breastfeeding.». The Cochrane database of systematic reviews. 8: CD003517. PMID22895934. doi:10.1002/14651858.CD003517.pub2