| pSIDS | partially unexplained sudden infant death syndrome |
|---|---|
| RCDR | relative corrected death rate |
| SCD | scleroderma; service-connected disability; sickle-cell disease; spinocerebellar degeneration; subacu... |
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| SDF | slow death factor; stress distribution factor |