| PCSW | personal care service worker |
|---|---|
| PDMS | patient data management system; pharmacokinetic drug monitoring service; polydimethylsiloxane |
| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfon... |
| PHLS | Public Health Laboratory Service |
| PHS | Physicians' Health Study; pooled human serum; posthypnotic suggestion; Public Health Service |