New research, published today in the New England Journal of Medicine, shows that a woman's risk of having a child with a neural tube defect (NTD), such as Spina Bifida, is not linked to folic acid related auto-antibodies. The findings refute a well publicised study in 2004, which had indicated a link between the presence of these auto-antibodies in the circulation of mothers who had children with Spina Bifida compared to those who did not.