Effect of the Combined Programme on Perioperative Anaemia（CPPA）

During the 1 week period following admission, 3 consecutive dosing regimens were administered, 200 mg of iron sucrose by intravenous infusion at 8am daily in combination with 150 IU/kg of recombinant human erythropoietin by subcutaneous injection and 2 g of ascorbic acid by intravenous infusion.

Treatment in accordance with measures routinely used by the surgeon's team to treat anemia including but not limited to (clinical observation, oral iron supplementation, intravenous iron supplementation, blood transfusion, or other measures) will be documented faithfully by the study team