| RAF | repetitive atrial firing; rheumatoid arthritis factor |
|---|---|
| RANA | rheumatoid arthritis nuclear antigen |
| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, av... |
| RASS | rheumatoid arthritis and Sjogren syndrome |
| RAT | repeat action tablet; rheumatoid arthritis test |
| VAS | Visual analogue pain scores |
|---|---|
| NCCP | non-cardiac chest pain |
| P | pain |
| P<0.001 | pain |