| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfon... |
|---|---|
| PET | peak ejection time; polyethylene terphthalate; poor exercise tolerance; positron emission tomography... |
| PIA | photoelectric intravenous angiography; plasma insulin activity; preinfarction angina; Psychiatric In... |
| PSMT | psychiatric services management team |
| PSS | painful shoulder syndrome; physiologic saline solution; porcine stress syndrome; primary Sjogren syn... |