Anencephaly and spina bifida.
D001741:Black or African American; D000757:Anencephaly / Q000453:epidemiology*; D006801:Humans; D008404:Massachusetts; D012737:Sex Factors; D012959:Socioeconomic Factors; D016135:Spinal Dysraphism / Q000453:epidemiology*; D044465:White People