| HOD | hyperbaric oxygen drenching |
|---|---|
| HOT | health-oriented telecommunication; human old tuberculin; hyperbaric oxygen therapy; Hypertension Opt... |
| A/C | albumin/coagulin [ratio]; anterior chamber of eye; assist control [ventilation] |
| A2C | apical two-chamber [view] |
| A4C | apical four-chamber [view] |