| NOTB | National Ophthalmic Treatment Board |
|---|---|
| PDRB | Permanent Diability Rating Board |
| PRB | basic proline-rich protein; Prosthetics Research Board |
| PRRB | Provider Reimbursement Review Board |
| RB | radiation burn; rating board; rebreathing; reticulate body; retinoblastoma; right bronchus; right bu... |