| NFE | nonferrous extract |
|---|---|
| PGYE | peptone, glucose yeast extract |
| PSE | paradoxical systolic expansion; penicillin-sensitive enzyme; portal systemic encephalopathy; Present... |
| PTE | parathyroid extract; posttraumatic epilepsy; pretibial edema; proximal tibial epiphysis; pulmonary t... |
| PYE | peptone yeast extract |