| AN | acanthosis nigricans; acne neonatorum; acoustic neuroma; adult, normal; ala nasi; amyl nitrate; aneu... |
|---|---|
| AEN | aseptic epiphyseal necrosis |
| IAN | idiopathic aseptic necrosis; indole acetonitrile |
| ARN | acute renal necrosis; acute retinal necrosis; arcuate nucleus; Association of Rehabilitation Nurses |
| SHN | spontaneous hemorrhagic necrosis; subacute hepatic necrosis |