| LRN | lateral reticular nucleus |
|---|---|
| PPRF | paramedian pontine reticular formation; postpartum renal failure |
| PRF | partial reinforcement; patient report form; perforin; plasma recognition factor; pontine reticular f... |
| PRRF | paramedian pontine reticular formation |
| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, av... |