RT Journal Article SR Electronic T1 Breastfeeding is important for cognitive development in term and preterm infants JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 85 OP 86 DO 10.1136/ebnurs-2012-100619 VO 15 IS 3 A1 Lewallen, Lynne P YR 2012 UL http://ebn.bmj.com/content/15/3/85.abstract AB