Subjects: *RESEARCH; HEARING disorders; OLDER peopleUNITED States
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Subjects: SCIENTIFIC apparatus & instruments; ARTIFICIAL intelligence; PATTERSON, Don
Subjects: *RESEARCH; OLDER people; OLD ageEUROPE
Subjects: *RESEARCH institutes; *GOVERNMENT policy; *PUBLIC spendingMCLAUGHLIN, Steven D.
Subjects: SHOPPING; BRAND name products; MARKETING research