Breast cancer death rates by health service area, 1968-72.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001943:Breast Neoplasms / Q000401:mortality*; D005260:Female; D006305:Health Status Indicators; D006306:Health Surveys; D006801:Humans; D008875:Middle Aged; D014481:United States