| GABHS | group A beta-hemolytic streptococcus |
|---|---|
| GRABS | group A beta-hemolytic streptococcal pharyngitis |
| HA | H antigen; Hakim-Adams [syndrome]; halothane anesthesia; Hartley [guinea pig]; headache; health alli... |
| HD | Haab-Dimmer [syndrome]; Hajna-Damon [broth]; Hansen disease; hearing distance; heart disease; helix ... |
| HDN | hemolytic disease of the newborn |