| HA | H antigen; Hakim-Adams [syndrome]; halothane anesthesia; Hartley [guinea pig]; headache; health alli... |
|---|---|
| HAChT | high affinity choline transport |
| HALC | high affinity-low capacity |
| HAP | Handicapped Aid Program; Hazardous Air Pollutants [List]; hazardous air pollution; health alliance p... |
| HAPC | high-amplitude peristaltic contraction; hospital-acquired penetration contact |