The sky's the limit. "Blue-sky" marketing program stresses intangibles.
Barnes
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D000368:Aged; D003256:Community Participation / Q000523:psychology*; D003657:Decision Making; D016852:Housing for the Elderly / Q000706:statistics & numerical data*; D006801:Humans; D008389:Marketing of Health Services / Q000379:methods*; D010565:Persuasive Communication