RT Journal Article SR Electronic T1 Fetal exposure to valproate was associated with lower IQ scores at 3 years of age than exposure to other antiepileptic drugs JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 153 OP 153 DO 10.1136/ebm.14.5.153 VO 14 IS 5 YR 2009 UL http://ebm.bmj.com/content/14/5/153.abstract AB