| NLB | needle liver biopsy |
|---|---|
| NOBT | nonoperative biopsy technique |
| PB | British pharmacopeia [Pharmacopoeia Britannica]; paraffin bath; Paul-Bunnell [antibody]; periodic br... |
| PNB | p-nitrobiphenyl; perineal needle biopsy; peripheral nerve block; premature nodal beat |
| RBBx | right breast biopsy |