{"title": "Effects of physical activity on children", "subjects": ["Congresses", "Exercise for children", "Physical education and training", "Physical education for children", "Lichaamsbeweging", "Education physique pour enfants", "Infant", "Kinderen", "Child Development", "Invloed", "Child", "Congres", "Physical Exertion"], "key": "/works/OL9546080W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL3549617A"}}], "type": {"key": "/type/work"}, "covers": [9867039], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-11T00:44:50.793662"}, "last_modified": {"type": "/type/datetime", "value": "2023-10-17T07:45:04.512572"}}