From the Centers for Disease Control and Prevention. Race-specific differences in influenza vaccination levels among Medicare beneficiaries--United States, 1993.
D001741:Black or African American / Q000706:statistics & numerical data; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007252:Influenza Vaccines; D008297:Male; D006278:Medicare; D014481:United States; D014611:Vaccination / Q000706:statistics & numerical data*; D044465:White People / Q000706:statistics & numerical data
D007252:Influenza Vaccines