title: Review of current IEC activities in acoustic output standardization of medical ultrasonic equipment.
authors.affiliation: Division of Radiation Science and Acoustics, National Physical Laboratory, Teddington, United Kingdom.
authors.forename: R C
authors.initials: RC
authors.lastname: Preston
mesh_terms: D000162:Acoustics; D002138:Calibration; D004867:Equipment Design / Q000592:standards; D004869:Equipment Safety; D006801:Humans; D012015:Reference Standards; D014159:Transducers; D014464:Ultrasonic Therapy / Q000295:instrumentation*; D014463:Ultrasonography / Q000295:instrumentation*