295,922 PROCEEDINGS Proceedings of the 25th Annual Meeting of the American Institute of Ultrasound in Medicine and the 9th Annual Meeting of the American Society of Ultrasound Technical Specialists : September 15—19, 1980 New Orleans, Luisiana. — Oklahoma City : American Institute of Ultrasound in Medicine, 1980. - [4], -218 s. : tabl., il. ; 28 cm