Newer observational: data: per Johns Hopkins University, Baltimore, MD, maternal plasma folate (folic acid) (vitamin B9) concentrations >59 nmol/L & vitamin B12 concentrations >600 pmol/L, respectively, the incidence of autism ?es more than 17-fold. See: http://www.medscape.com/viewarticle/863216 for a publicly available summary from an analysis presented at the International Meeting for Autism Research (IMFAR) 2016.
Answered 5/22/2016
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