| PPN | partial parenteral nutrition; pedunculopontine nucleus |
|---|---|
| PPN | painful peripheral neuropathy |
| PPNA | peak phrenic nerve activity |
| PPNAD | primary pigmented nodular adrenocortical disease |
| PPNG | Penicillinase-Producing NG |
| PPNG | penicillinase-producing Neisseria gonorrhoeae |