| NTV | nerve tissue vaccine |
|---|---|
| OPV | oral polio vaccine |
| PKV | killed poliomyelitis vaccine |
| PLV | partial liquid ventilation; poliomyelitis live vaccine; panleukopenia virus; phenylalanine, lysine, ... |
| PV | pancreatic vein; papillomavirus; paraventricular; paravertebral; pemphigus vulgaris; peripheral vasc... |