| misc | miscarriage; miscellaneous |
|---|---|
| TAT | tetanus antitoxin; thematic apperception test; thematic aptitude test; thrombin-antithrombin complex... |
| AADR | American Academy of Dental Radiology |
| ACR | abnormally contracting region; absolute catabolic rate; acriflavine; adenomatosis of colon and rectu... |
| AHRA | American Hospital Radiology Administration |