{"first_sentence": {"type": "/type/text", "value": "The fundamental questions that have driven the field of heart development over the past century continue to move the field today."}, "physical_format": "Hardcover", "weight": "1.8 pounds", "languages": [{"key": "/l/eng"}], "type": {"key": "/type/edition"}, "publishers": ["Birkhauser"], "number_of_pages": 276, "isbn_13": ["9780817642167"], "id": 12812575, "edition_name": "1st edition", "isbn_10": ["0817642161"], "publish_date": "January 15, 2001", "key": "/b/OL9516658M", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "title": "Formation of the Heart & Its Regulation (Cardiovascular Molecular Morphogenesis)", "contributions": ["Robert J. Tomanek (Editor)", "Robert B. Runyan (Editor)"], "subjects": ["Cardiovascular medicine", "Cellular biology", "Paediatric medicine", "Physiology", "Human Embryology", "Science/Mathematics", "Cardiovascular System Physiology", "Science", "Medical / Nursing", "Pediatrics", "Life Sciences - Anatomy & Physiology", "Cardiology", "Science / Zoology", "embryology", "Life Sciences - Biology - General", "growth & development", "Embryology, Human", "Heart", "Heart Defects, Congenital"], "physical_dimensions": "10 x 7 x 0.8 inches", "revision": 1}