From the Health Care Financing Administration.
Roper
W L
WL
D000368:Aged; D005260:Female; D006801:Humans; D007354:Insurance, Major Medical / Q000191:economics*; D007357:Insurance, Physician Services / Q000191:economics; D008327:Mammography / Q000191:economics; D006278:Medicare / Q000191:economics*; D014481:United States