Errors in ultrasonic biometry and their correction.
D001699:Biometry / Q000379:methods*; D004739:England; D009757:Nylons; D009885:Ophthalmology / Q000592:standards*; D009991:Oscillometry / Q000295:instrumentation; D011791:Quartz; D014465:Ultrasonics / Q000295:instrumentation; D014867:Water
D009757:Nylons; D014867:Water; D011791:Quartz