| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
|---|---|
| SDI | standard deviation interval; survey diagnostic instrument |
| SDM | sensory detection method; standard deviation of the mean |
| SDS | same day surgery; school dental services; self-rating depression scale; sensory deprivation syndrome... |
| SDt | standard deviation of total scores |