On the relation between age of mother and percentage of stillbirth in the total, the white and the colored U.S. populations.
D005260:Female; D006801:Humans; D009035:Mothers; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000706:statistics & numerical data*; D050497:Stillbirth; D014481:United States; D044465:White People
STILLBIRTH/statistics