title: Anencephaly and spina bifida (ASB) and retroversion.
abstract: Despite the wealth of epidemiological material of the last decade, birth defects are still the chief cause of perinatal mortality and no significant breakthrough in understanding or reduction has yet been seen. Many proposed aetiological factors are still being evaluated. This report suggests a possible, simple, remediable factor in the aetiology of defects of the central nervous system.
mesh_terms: D000757:Anencephaly / Q000209:etiology*; D005260:Female; D006801:Humans; D006940:Hyperemia / Q000150:complications; D007231:Infant, Newborn; D012189:Retrospective Studies; D016136:Spina Bifida Occulta / Q000209:etiology*; D014599:Uterus / Q000098:blood supply*; D014680:Veins