{"isbn_13": ["9780849332531"], "physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "languages": [{"key": "/l/eng"}], "publishers": ["CRC Press"], "number_of_pages": 360, "id": 11181864, "first_sentence": {"type": "/type/text", "value": "In this chapter we shall describe basic physical and technological principles of ultrasound diagnostic equipment without extensive mathematical treatment, except for some simple and useful formulas."}, "isbn_10": ["0849332532"], "publish_date": "July 3, 1990", "key": "/b/OL8260032M", "authors": [{"key": "/a/OL886550A"}], "title": "CRC Handbook of Ultrasound in Obstetrics and Gynecology, Volume I", "type": {"key": "/type/edition"}, "subjects": ["Obstetrical Diagnostic Procedures", "Health/Fitness", "Medical / Nursing", "Ultrasonics in obstetrics", "Diagnostic Imaging", "Gynecology & Obstetrics", "Gynaecology & obstetrics", "Reproductive medicine", "Ultrasonics", "Diagnosis", "Diagnosis, Ultrasonic", "Diseases", "Generative organs, Female"], "revision": 1}