| RA | 1) Refractory Anemia 2) Rheumatoid Arthritis ? Arthritis 3... |
|---|---|
| RAEB | Refractory Anemia with Excess of Blasts |
| RAEB-T | Refractory Anemia with Excess Blasts in Transformation |
| RARS | Refractory Anemia with Ringed Sideroblast = AISA |
| AERPAP | antegrade effective refractory period accessory pathway |