Anencephalus and the local water supply.
D000757:Anencephaly / Q000453:epidemiology* / Q000209:etiology; D002118:Calcium / Q000032:analysis; D002713:Chlorine / Q000032:analysis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008274:Magnesium / Q000032:analysis; D012964:Sodium / Q000032:analysis; D016135:Spinal Dysraphism / Q000453:epidemiology; D006113:United Kingdom; D014481:United States; D014867:Water / Q000032:analysis*; D014881:Water Supply
D014867:Water; D002713:Chlorine; D012964:Sodium; D008274:Magnesium; D002118:Calcium