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Distribution of pre-transfusion Hb in surgical wards.
The distribution of pre-transfusion Hb according to the national transfusion guideline in all surgical wards (upper left) and five selected surgical wards.
Light grey columns: Pre-transfusion Hb ≤7.3 g/dL. Medium dark grey columns: 7.4–9.6 g/dL.
Black columns: ≥9.7 g/dL.
