| PSD | particle size distribution; peptone, starch, and dextrose; periodic synchronous discharge; phase-sen... |
|---|---|
| RDHBF | regional distribution of hepatic blood flow |
| RDW | red blood cell distribution width index |
| SDF | slow death factor; stress distribution factor |
| SFD | silo filler's disease; skin-film distance; small for dates; spectral frequency distribution |