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Donor selection in Japan: a trial of new criteria with predonation haemoglobin testing

Background and Objectives In Japan, eligibility for blood donation depends on blood specific gravity, which does not directly measure blood haemoglobin. Additionally, the criteria are not based on normal values. Therefore, we investigated the feasibility of predonation screening by using actual haemoglobin levels, and adopted a new criterion based on the normal range for men.