RT Journal Article SR Electronic T1 Introduction of solids before 4 months is associated with obesity at 3 years among formula-fed infants but not among breast-fed infants JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 177 OP 178 DO 10.1136/ebmed-2011-0012 VO 16 IS 6 A1 Binns, Colin W YR 2011 UL http://ebm.bmj.com/content/16/6/177.abstract AB