title: Approach to blood donors with microcytosis.
authors.forename: Frank
authors.initials: F
authors.lastname: Boulton
mesh_terms: D018798:Anemia, Iron-Deficiency / Q000175:diagnosis*; D001782:Blood Donors / Q000600:supply & distribution*; D003937:Diagnosis, Differential; D004909:Erythrocyte Indices; D006801:Humans; D017086:beta-Thalassemia / Q000175:diagnosis*