| SAN | sinoatrial node; sinoauricular node; slept all night; solitary autonomous nodule |
|---|---|
| TNM | primary tumor, regional nodes, metastasis [tumor staging]; thyroid node metastases; tumor node metas... |
| BBB | 1) Bundle Branch Block 2) Blood Brain Barrier - Blood Brain Barrier |
| BBBB | Bilateral Bundle Branch Block |
| LBBB | Left Bundle Branch Block |