| PBLT | peripheral blood lymphocyte transformation |
|---|---|
| PDL | pancreatic duct ligation; periodontal ligament; poorly differentiated lymphocyte; population doublin... |
| PEL | peritoneal exudate lymphocyte; permissible exposure limit |
| PHAL | phytohemagglutinin-stimulated lymphocyte |
| RARLS | rabbit anti-rat lymphocyte serum |