| TNM | primary tumor, regional nodes, metastasis [tumor staging]; thyroid node metastases; tumor node metas... |
|---|---|
| A2C | apical two-chamber [view] |
| A4C | apical four-chamber [view] |
| AER | abduction/external rotation; acoustic evoked response; acute exertional rhabdomyolysis; agranular en... |
| AI | accidental injury; accidentally incurred; adiposity index; aggregation index; allergy and immunology... |