3. Bisphosphonates vs. bisphosphonates plus calcitonin (O'Donoghue 1987).
| Ouctome | Etidronate plus calcitonin | Etidronate | RR (95% IC) | ||
| Events | N | Events | N | ||
| Change in bone pain | 10 | 21 | 15 | 23 | 0.73 (0.43 to 1.25) |
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