| P&T | permanent and total [disability]; pharmacy and therapeutics |
|---|---|
| PTD | percutaneous transluminal dilatation; permanent total disability; personality trait disorder; preter... |
| RDRS | rapid disability rating scale |
| SCD | scleroderma; service-connected disability; sickle-cell disease; spinocerebellar degeneration; subacu... |
| SSD | shaded surface display; single saturating dose; Social Security disability; source-skin distance; so... |