Table 3.
International Staging System for Multiple Myeloma [5]
| Stage | Criteria |
|---|---|
| I | Serum β2-microglobulin level <3.5 mg/l |
| Serum albumin ≥3.5 g/dl | |
| II | Not stage I or III |
| III | Serum β2-microglobulin level ≥5.5 mg/l |
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