title: Letter: Hemoglobin F and sickle-cell anemia.
mesh_terms: D000755:Anemia, Sickle Cell / Q000097:blood*; D004912:Erythrocytes; D005319:Fetal Hemoglobin; D006451:Hemoglobin, Sickle
chemical_list: D006451:Hemoglobin, Sickle; D005319:Fetal Hemoglobin