| PRI | Pain Rating Index; phosphate reabsorption index; phosphoribose isomerase; placental ribonuclease inh... |
|---|---|
| PRI(S) | pain rating intensity score |
| PSR | pain sensitivity range; perspective surface rendering; portal systemic resistance; proliferative sic... |
| PTN | pain transmission neuron; pleiotrophin; posterior tibial nerve |
| RAP | recurrent abdominal pain; regression-associated protein; renal artery pressure; resident assessment ... |