| 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... |
| IHSS | idiopathic hypertrophic subaortic stenosis |
| LAX-DSS | long axis-discrete subaortic stenosis |
| MSS | Marshall-Smith syndrome; massage; Medical Superintendents' Society; Medicare Statistical System; men... |