600 / | HD | SURGERY |
300 | DF | DIAGNOSTIC TESTING {38} |
407 | DF | .~ Detecting nuclear, electromagnetic, or ultrasonic radiation {11} |
437 | DF | .~.~ Ultrasonic {10} |
443 | DF | .~.~.~ Anatomic image produced by reflective scanning {3} |
447 | .~.~.~.~ Electronic array scanning |