| LPFB | left posterior fascicular block |
|---|---|
| LPIFB | left posteroinferior fascicular block |
| PAB | para-aminobenzoate; performance assessment battery; pharmacologic autonomic block; poly(A)-binding [... |
| PCB | paracervical block; polychlorinated biphenyl; portacaval bypass; postcoital bleeding; procarbazine |
| PNB | p-nitrobiphenyl; perineal needle biopsy; peripheral nerve block; premature nodal beat |