title: Letter: Fetal hemoglobin and the irreversibly sickled cell in sickle cell disease.
mesh_terms: D000293:Adolescent; D000755:Anemia, Sickle Cell / Q000097:blood*; D004906:Erythrocyte Count; D004913:Erythrocytes, Abnormal; D005260:Female; D005319:Fetal Hemoglobin / Q000032:analysis*; D006801:Humans; D008297:Male
chemical_list: D005319:Fetal Hemoglobin