{"created": {"type": "/type/datetime", "value": "2009-12-10T23:43:48.932117"}, "subjects": ["Gastrointestinal system", "Esophagus", "Esophagogastric junction", "Surgery", "Upper Gastrointestinal Tract"], "latest_revision": 3, "key": "/works/OL9037116W", "title": "Hepatobiliary and Upper GI Surgery", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL3154553A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2014-07-29T20:40:55.479091"}, "covers": [2045327], "revision": 3}