| HELLIS | Health, Literature, Library and Information Services |
|---|---|
| HHS | [Department of] Health and Human Services; Hearing Handicap Scale; hereditary hemolytic syndrome; hu... |
| HHSSA | Home Health Services and Staffing Association |
| HRS | Hamilton Rating Scale; Hamman-Rich syndrome; health and rehabilitative services; hepatorenal syndrom... |
| HRSA | Health Resources and Services Administration |