{"title": "Herz und Kreislauf im Wandel der Zeiten", "subjects": ["Blood", "Cardiology", "Circulation", "Heart", "History", "History of Medicine", "Blood Circulation"], "key": "/works/OL4070071W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL760653A"}}], "type": {"key": "/type/work"}, "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-10T05:17:07.046029"}, "last_modified": {"type": "/type/datetime", "value": "2025-04-14T06:01:34.668381"}}