{"first_sentence": {"type": "/type/text", "value": "More than 10 years ago, Frieling and co-workers for the first time attempted to solve the question of how visceral sensations are delivered to and processed by the brain, by using neurophysiological tools such as evoked potential (EP) recordings to directly investigate the human gut-brain axis."}, "physical_format": "Hardcover", "weight": "1.1 pounds", "languages": [{"key": "/l/eng"}], "type": {"key": "/type/edition"}, "publishers": ["Springer"], "number_of_pages": 256, "isbn_13": ["9780792387749"], "id": 10609337, "edition_name": "1 edition", "isbn_10": ["0792387740"], "publish_date": "December 31, 2002", "key": "/b/OL7810420M", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "title": "Medical Imaging in Gastroenterology and Hepatology (Falk Symposium)", "contributions": ["F. Hagenm\u00fcller (Editor)", "M.P. Manns (Editor)", "H.G. Musmann (Editor)", "J.F. Riemann (Editor)"], "subjects": ["Gastroenterology", "Medical imaging", "Medical / Nursing", "Radiologic Diagnosis", "Medical", "Diagnostic Imaging", "Ultrasonography", "Medical / Gastroenterology"], "physical_dimensions": "9.4 x 6.3 x 0.8 inches", "revision": 1}