| BHL | bilateral hilar lymphadenopathy; biological half-life |
|---|---|
| BLS | bare lymphocyte syndrome; basic life support; blind loop syndrome; blood and lymphatic system; blood... |
| BLSA | basic life support ambulance |
| BTLS | basic trauma life support |
| CAL | cafe au lait; calcium test; calculated average life; calories; chronic airflow limitation; computer-... |