600 / | HD | SURGERY |
300 | DF | DIAGNOSTIC TESTING {38} |
372 | DF | .~ Structure of body-contacting electrode or electrode inserted in body {6} |
395 | .~.~ Electrode composition {2} | |
396 | DF | .~.~.~> Silver/silver chloride containing |
397 | DF | .~.~.~> Electrolyte containing |