| 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... |
| HAChT | high affinity choline transport |
| HALC | high affinity-low capacity |