Personal response services present and future.
American Lifetime Institute, Newton, MA 02159.
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Dibner
D000368:Aged; D003143:Communication Devices for People with Disabilities / Q000639:trends*; D004631:Emergency Medical Service Communication Systems / Q000639:trends*; D016330:Frail Elderly; D006699:Home Care Services / Q000639:trends; D006801:Humans; D014481:United States