| BBF | bronchial blood flow |
|---|---|
| BFB | biological feedback; bronchial foreign body |
| BH | base hospital; benzalkonium and heparin; bill of health; birth history; Bishop-Harman [instruments];... |
| BHR | basal heart rate; benign hypertrophic prostatitis; bronchial hyperreactivity |
| BL | Barre-Lieou [syndrome]; basal lamina; baseline; Bessey-Lowry [unit]; black light; bladder; bleeding;... |