| TTS | tarsal tunnel syndrome; temporary threshold shift; through the scope; through the skin; tilt table s... |
|---|---|
| AADR | American Academy of Dental Radiology |
| ACR | abnormally contracting region; absolute catabolic rate; acriflavine; adenomatosis of colon and rectu... |
| AHRA | American Hospital Radiology Administration |
| AOCR | American Osteopathic College of Radiology; American Osteopathic College of Rheumatology |