| BRBN | blue rubber bleb nevus |
|---|---|
| BRBNS | blue rubber bleb nevus syndrome |
| Rb | Imp rubber base impression |
| RD | radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; ... |
| SBR | small bowel resection; spleen-to-body [weight] ratio; strict bed rest; styrene-butadiene rubber |