Racial factors in anencephaly. A comparison of cases among American Negroes and Caucasians.
D000022:Abortion, Spontaneous / Q000453:epidemiology; D000328:Adult; D000757:Anencephaly / Q000453:epidemiology*; D001724:Birth Weight; D044383:Black People; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009929:Organ Size; D010920:Placenta; D006831:Polyhydramnios / Q000453:epidemiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology; D044469:Racial Groups; D012744:Sex Ratio; D044465:White People