title: Hemoglobin A2 in early childhood.
mesh_terms: D000328:Adult; D002675:Child, Preschool; D006441:Hemoglobin A / Q000502:physiology*; D006454:Hemoglobins / Q000502:physiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn
chemical_list: D006454:Hemoglobins; D006441:Hemoglobin A