600 / | HD | SURGERY |
300 | DF | DIAGNOSTIC TESTING {38} |
309 | DF | .~ Measuring or detecting nonradioactive constituent of body liquid by means placed against or in body throughout test {8} |
345 | DF | .~.~ Electroanalysis {3} |
348 | DF | .~.~.~ Determining ion concentration/partial pressure {7} |
352 | .~.~.~.~ Using a flowthrough cell |