607 / | HD | SURGERY: LIGHT, THERMAL, AND ELECTRICAL APPLICATION |
1 | DF | LIGHT, THERMAL, AND ELECTRICAL APPLICATION {8} |
2 | DF | .~ Electrical therapeutic systems {28} |
9 | DF | .~.~ Heart rate regulating (e.g., pacing) {15} |
16 | .~.~.~ Intermittent operation for energy conservation |