| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfonate; postextrasystolic; preepiglottic space; preexcitation syndrome; primary empty sella [syndrome]; pseudoexfoliative syndrome; psychiatric emergency services |
|---|---|
| Pes | esophageal pressure |
| PESP | postextrasystolic potentiation |
| PESS | problem, etiology, signs and symptoms |
| Pess | pessary |