| PDG | parkinsonism-dementia complex of Guam; phosphogluconate dehydrogenase |
|---|---|
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| SDAT | senile dementia of Alzheimer type |
| SIDAM | structured interview for the diagnosis of dementia of the Alzheimer type |
| TVD | transmissible virus dementia; triple vessel disease |