title: The risk of neural tube defects to first cousins of affected individuals.
mesh_terms: D004812:Epidemiologic Methods; D005820:Genetic Testing; D006801:Humans; D009436:Neural Tube Defects / Q000453:epidemiology / Q000235:genetics*; D010375:Pedigree; D011296:Prenatal Diagnosis; D012306:Risk; D014481:United States