| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
|---|---|
| PCD | pacer-cardioverter-defibrillator; papillary collecting duct; paraneoplastic cerebellar degeneration;... |
| PDCD | primary degenerative cerebral disease |
| rCBF | regional cerebral blood flow |
| rCBV | regional cerebral blood volume |