| PCD | pacer-cardioverter-defibrillator; papillary collecting duct; paraneoplastic cerebellar degeneration;... |
|---|---|
| PRD | partial reaction of degeneration; physician relations department; postradiation dysplasia |
| RDS | Raskin Depression Scale; respiratory distress syndrome; reticuloendothelial depressing substance; rh... |
| RED | radiation experience data; rapid erythrocyte degeneration |
| SACD | subacute combined degeneration |