| PPI | partial permanent impairment; patient package insert; present pain intensity; purified porcine insul... |
|---|---|
| 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 |