| PBZ | personal breathing zone; phenylbutazone; phenoxybenzamine; pyribenzamine |
|---|---|
| PNPB | positive-negative pressure breathing |
| PPB | platelet-poor blood; pneumococcal pneumonia and bacteremia; positive pressure breathing |
| RBA | relative binding affinity; rescue breathing apparatus; right basilar artery; right brachial artery; ... |
| SB | Bachelor of Science; Schwartz-Bartter [syndrome]; serum bilirubin; shortness of breath; sick bay; si... |