| PPD | packs per day; paraphenylenediamine; percussion and postural drainage; permanent partial disability;... |
|---|---|
| PCC | Pasteur Culture Collection; percutaneous cecostomy; pheochromocytoma; phosphate carrier compound; pl... |
| DEF | decayed primary teeth requiring filling, decayed primary teeth requiring extraction, and primary tee... |
| PA | panic attack; pantothenic acid; paralysis agitans; paranoia; passive aggressive; pathology; patient'... |
| PPD-S | purified protein derivative-standard |