| ACR | abnormally contracting region; absolute catabolic rate; acriflavine; adenomatosis of colon and rectu... |
|---|---|
| AI/RHEUM | artificial intelligence rheumatology consultant system |
| AOCR | American Osteopathic College of Radiology; American Osteopathic College of Rheumatology |
| RADAR | rapid assessment of disease activity in rheumatology |
| RHU | registered health underwriter; rheumatology |