title: The copper sulphate screening test for haemoglobin levels in blood donors: a re-assessment.
mesh_terms: D000328:Adult; D001782:Blood Donors; D003300:Copper; D019327:Copper Sulfate; D006400:Hematocrit; D006452:Hemoglobinometry / Q000379:methods*; D006801:Humans; D008297:Male
chemical_list: D003300:Copper; D019327:Copper Sulfate