| Abbreviations | Meaning |
 | INA | Infectious Nucleic Acid; Inferior Nasal Artery; Instrumentation Amplifier; International Neurological Association |
| CHA | Common Hepatic Artery |
| A | Artery [Lat. Arteria] |
| LCA | Left Coronary Artery |
| ESCAPE | Evaluation Study Of Congestive Heart Failure And Pulmonary Artery Catheterization Effectiveness |
| SUA | Serum Uric Acid; Single Umbilical Artery; Single Unit Activity |
| PICA | Postero-inferior Cerebellar Artery |
| ACA | Anterior Communicating Aneurysm [or Artery]; Anticapsular Antibody; Anticardiolipin Antibody; Anticentromere Antibody |
| CAST | Carotid Artery Stenting Trial |
| OA | Occipital Artery |
| CASANOVA | Coronary Artery Stenosis With Asymptomatic Narrowing: Operation Vs Aspirin [study] |
| UAC | Umbilical Artery Catheter |
| CRA | Central Retinal Artery |
| PAH | Pulmonary Artery Hypotension |
| RAD | Radial Artery Catheter |
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