RT Journal Article SR Electronic T1 Inositol and folate resistant neural tube defects JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP e5 OP e5 DO 10.1136/jmg.39.2.e5 VO 39 IS 2 A1 P Cavalli A1 A J Copp YR 2002 UL http://jmg.bmj.com/content/39/2/e5.abstract AB