| HL | hairline; hairy leukoplakia; half life; hearing level; hearing loss; heparin lock; histiocytic lymph... |
|---|---|
| HRQOL | health-related quality of life |
| IDLH | immediate danger to life and health |
| IHQL | index of health-related quality of life |
| ILS | idiopathic leucine sensitivity; idiopathic lymphadenopathy syndrome; increase in life span; infrared... |