Selling across the continuum.
Thornton
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D000329:Advertising; D000368:Aged; D003258:Consumer Behavior; D003266:Continuity of Patient Care / Q000458:organization & administration*; D016852:Housing for the Elderly / Q000191:economics*; D006801:Humans; D007255:Information Services; D008389:Marketing of Health Services / Q000379:methods*; D014481:United States