| HSAS | hydrocephalus due to stenosis of aqueduct of Sylvius; hypertrophic subaortic stenosis |
|---|---|
| HSS | Hallermann-Streiff syndrome; Hallervorden-Spatz syndrome; Henoch-Schonlein syndrome; high-speed supe... |
| IHO | idiopathic hypertrophic osteo-arthropathy |
| IHSS | idiopathic hypertrophic subaortic stenosis |
| SHO | secondary hypertrophic osteoarthropathy; Senior House Officer |