Out of hospital deliveries in Alabama 1940-1980.
D001741:Black or African American; D000407:Alabama; D005260:Female; D006760:Hospitalization / Q000639:trends; D006801:Humans; D007743:Labor, Obstetric; D008427:Maternal Health Services / Q000706:statistics & numerical data*; D008880:Midwifery; D011247:Pregnancy; D014481:United States