| Xi | inactive X Chromosome |
|---|---|
| CAC/CIC | chronic active/inactive cirrhosis |
| IRA | immunoradioassay; immunoregulatory alpha-globulin; inactive renin activity |
| AFB | Acid-Fast Bacillus(Type that causes Tuberculosis) |
| NTA | 1) Naso-Tracheal Aspiration 2) National Tuberculosis Association |