| ARC | accelerating rate calorimetry; acquired immunodeficiency syndrome-related complex; active renin conc... |
|---|---|
| ARN | acute renal necrosis; acute retinal necrosis; arcuate nucleus; Association of Rehabilitation Nurses |
| BARN | bilateral acute retinal necrosis |
| BRAO | branch retinal artery occlusion |
| BRVO | branch retinal vein occlusion |