| AaPO2, (A-a) PO2 | alveolo-arterial oxygen tension difference |
|---|---|
| ATS | Achard-Thiers syndrome; acid test solution; alpha-D-tocopherol acid succinate; American Thoracic Soc... |
| CTH | ceramide trihexoside; chronic tension headache; cystathionase |
| HT | Hashimoto thyroiditis; hearing test; hearing threshold; heart; heart transplantation, heart transpla... |
| ht | heart; heart tones; height; high tension |