Genetic aspects of neural tube defects.
D000015:Abnormalities, Multiple / Q000453:epidemiology; D000757:Anencephaly / Q000235:genetics; D004200:Diseases in Twins; D004777:Environment; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009436:Neural Tube Defects / Q000453:epidemiology / Q000209:etiology / Q000235:genetics*; D012306:Risk; D016136:Spina Bifida Occulta / Q000235:genetics