New techniques and instrumentation in ultrasonography / Edited by Peter N. T. Wells and Marvin C. Ziskin. - New York : Churchill Livingstone, 1980. - 245 p. : ill.; 24 cm. - Clinics in diagnostic ultrasound ; v.5 . ISBN: 0443080755 Subjects--Topical Terms: Diagnosis, Ultrasonic.Diagnosis, Ultrasonic--Instruments.Ultrasonics--Diagnostic use.Ultrasonics--Instrumentation.