![](https://s3.amazonaws.com/cache.altmetric.com/policy/thumbnails/thumbnail-f84be503290e17b89e9456af53dba3e8254ce0ffee2e49f8fcdbb920f2ca099c.jpg)
Prevention of neural tube defects by the fortification of flour with folic acid: a population-based retrospective study in Brazil
Cited by World Health Organization on
The World Health Organization (WHO) is the directing and coordinating authority for health within the United Nations system.