title: Clues to the aetiology of neural tube malformations.
mesh_terms: D001741:Black or African American; D000757:Anencephaly / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D001315:Australia; D001722:Birth Order; D044383:Black People; D002971:Cleft Lip / Q000235:genetics; D003025:Clubfoot / Q000235:genetics; D003241:Consanguinity; D004032:Diet; D004200:Diseases in Twins; D004534:Egypt; D005260:Female; D006254:Hawaii; D006801:Humans; D007194:India; D007564:Japan / Q000208:ethnology; D008297:Male; D008423:Maternal Age; D011707:Pyloric Stenosis / Q000235:genetics; D012621:Seasons; D012737:Sex Factors; D012923:Social Class; D016135:Spinal Dysraphism / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D006113:United Kingdom