Unwanted births and U. S. population growth.
D000029:Abortion, Legal; D001723:Birth Rate; D005006:Ethnicity; D005260:Female; D005298:Fertility; D006801:Humans; D011158:Population Growth; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014481:United States