RT Journal Article SR Electronic T1 No consistent evidence to date that prenatal or postnatal probiotic supplementation prevents childhood asthma and wheeze JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP ebmed-2014-101721 DO 10.1136/eb-2014-101721 A1 Michael D Cabana YR 2014 UL http://ebm.bmj.com/content/early/2014/03/17/eb-2014-101721.abstract AB