| RID | radial immunodiffusion; remission-inducing drug; ruptured intervertebral disc |
|---|---|
| RK | rabbit kidney; radial keratotomy; reductase kinase; rhodopsin kinase; right kidney |
| RL | radial line; radiation laboratory; reduction level; renal dysplasia-limb defects [syndrome]; resisti... |
| RP | radial pulse; radiopharmaceutical; rapid processing [of film]; Raynaud phenomenon; reactive protein;... |
| SBRN | sensory branch of radial nerve |