{"subject_places": ["United States"], "subjects": ["Law and legislation", "National health insurance", "State Medicine", "Health Insurance", "Health Planning", "Medical Economics"], "key": "/works/OL588559W", "title": "National health insurance", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL43157A"}}], "type": {"key": "/type/work"}, "covers": [10790223], "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2009-12-08T05:55:44.626701"}, "last_modified": {"type": "/type/datetime", "value": "2025-11-04T09:36:03.863115"}}