| PPID | peak pain intensity difference [score] |
|---|---|
| PPP | pain perception profile; palatopharyngoplasty; palmoplantar pustulosis; pentose phosphate pathway; p... |
| 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... |