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Intraoperative cell salvage in radical retropubic prostatectomy.

This article attempts a risk evaluation with only 62 patients. Unfortunately, statistics tell us that, even to show a risk increase (e.g., of metastasis) by as much as 10%, one needs more than 1000 patients (Harrison et al., Br J Surg 1992;79:355-357)! In terms of transfusion risks, a level of sensitivity of 10% is out […]