By contrast, crush artefacts and aspiration artifacts were slightly more frequent with the powered system than with the manual device (n=17 vs 12 and 14 vs 13), but again this did not reach statistical significance (crush artefacts p=0.301, aspiration artefacts p=1.0).
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Comparison of a powered bone marrow biopsy device with a manual system: results of a prospective randomised controlled trial.
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