| SAD | Scale of Anxiety and Depression; seasonal affective disorder; Self-Assessment Depression [scale]; se... |
|---|---|
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| SRBD | sleep-related breathing disorder |
| TD | tabes dorsalis; tardive dyskinesia; T-cell dependent; temporary disability; terminal device; tetanus... |
| TDSD | transient digestive system disorder |