| NAPPH | National Association of Private Psychiatric Hospitals |
|---|---|
| PEF | peak expiratory flow; Psychiatric Evaluation Form; pulmonary edema fluid |
| PERI | Psychiatric Epidemiology Research Interview |
| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfon... |
| PET | peak ejection time; polyethylene terphthalate; poor exercise tolerance; positron emission tomography... |