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Haemogram values during the study. Haemoglobin a and haematocrit b were determined at the beginning of the study (baseline), before each rHuEPO administration and/or ABD and on the day of surgery. Groups 2 (●) and 3 (■) underwent up to five ABD and five rHuEPO administrations; and group 1 (◆) underwent ABD only
