| PRF | partial reinforcement; patient report form; perforin; plasma recognition factor; pontine reticular f... |
|---|---|
| PRRF | paramedian pontine reticular formation |
| LP | labile peptide; labile protein; laboratory procedure; lactic peroxidase; lamina propria; laryngophar... |
| LRN | lateral reticular nucleus |
| RL | radial line; radiation laboratory; reduction level; renal dysplasia-limb defects [syndrome]; resisti... |