1. Copyright © 2013 American Medical Association. All rights reserved.
From: Association Between Maternal Use of Folic Acid Supplements and Risk of Autism Spectrum Disorders in Children
JAMA. 2013;309(6): doi: /jama
Figure Legend:
Approximately 283 000 children were invited to participate in the Norwegian Mother and Child Cohort Study; of these, approximately 174 000 declined to participate. ASD indicates autism spectrum disorder. aNumbers sum to more than 12 003 because some children met more than 1 exclusion criterion.
Date of download: 11/14/2017
Copyright © 2013 American Medical Association. All rights reserved.

2. Copyright © 2013 American Medical Association. All rights reserved.
From: Association Between Maternal Use of Folic Acid Supplements and Risk of Autism Spectrum Disorders in Children
JAMA. 2013;309(6): doi: /jama
Date of download: 11/14/2017
Copyright © 2013 American Medical Association. All rights reserved.