title: Commentary.
authors.affiliation: Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA.
authors.forename: Dennis
authors.initials: D
authors.lastname: Dietzen
mesh_terms: D003072:Cognition Disorders / Q000209:etiology*; D002658:Developmental Disabilities / Q000209:etiology*; D005260:Female; D006801:Humans; D020138:Hyperhomocysteinemia / Q000150:complications*; D008297:Male