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. 2023 Sep 8;2023(9):CD001888. doi: 10.1002/14651858.CD001888.pub5

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Copyright © 2023 The Authors. Cochrane Database of Systematic Reviews published by John Wiley & Sons, Ltd. on behalf of The Cochrane Collaboration.

This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial-No-Derivatives Licence, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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14.3 — Comparison 14: Orthopaedic (knee) (subgroup: timing), Outcome 3: Volume of transfusion (units) (PPT)