{"first_publish_date": "1977", "title": "Hearing impairment among aging persons", "covers": [4418820], "lc_classifications": ["RF291.5.A35 H84"], "key": "/works/OL3516756W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL588708A"}}], "dewey_number": ["618.9/778/9"], "type": {"key": "/type/work"}, "subjects": ["Hearing aids", "Older deaf people", "Presbycusis", "Hearing", "Older people, diseases"], "latest_revision": 8, "revision": 8, "created": {"type": "/type/datetime", "value": "2009-12-10T03:45:23.921228"}, "last_modified": {"type": "/type/datetime", "value": "2022-10-18T09:47:58.205064"}}