600 / | HD | SURGERY |
300 | DF | DIAGNOSTIC TESTING {38} |
407 | DF | .~ Detecting nuclear, electromagnetic, or ultrasonic radiation {11} |
437 | DF | .~.~ Ultrasonic {10} |
449 | .~.~.~ One-dimensional anatomic display or measurement {3} | |
450 | DF | .~.~.~.~> Cardiographic |
451 | DF | .~.~.~.~> Echoencephalography |
452 | DF | .~.~.~.~> Ophthalmic |