| CHFD | controlled high flux dialysis |
|---|---|
| CHFV | combined high-frequency ventilation |
| EHF | epidemic hemorrhagic fever; exophthalmos-hyperthyroid factor; extreme high frequency |
| FRHS | fast-repeating high sequence |
| HA | H antigen; Hakim-Adams [syndrome]; halothane anesthesia; Hartley [guinea pig]; headache; health alli... |