title: Neural tube defects in sibs of children with tracheo-oesophageal dysraphism.
mesh_terms: D004200:Diseases in Twins / Q000453:epidemiology; D004933:Esophageal Atresia / Q000453:epidemiology* / Q000235:genetics; D006801:Humans; D007231:Infant, Newborn; D009436:Neural Tube Defects / Q000453:epidemiology* / Q000235:genetics*; D014138:Tracheoesophageal Fistula / Q000453:epidemiology* / Q000235:genetics