| BL | Barre-Lieou [syndrome]; basal lamina; baseline; Bessey-Lowry [unit]; black light; bladder; bleeding;... |
|---|---|
| B-l | bursa-equivalent lymphocyte |
| B-LCL | B-lymphocyte cell line |
| BLS | bare lymphocyte syndrome; basic life support; blind loop syndrome; blood and lymphatic system; blood... |
| CFU-L, | CFUL colony-forming unit, lymphocyte |