Sickle Cell Disease in a Patient with Sickle Cell Trait and Compound Heterozygosity for Hemoglobin S and Hemoglobin Quebec–Chori

THE sickle cell trait is generally considered to be benign, because the presence of hemoglobin A in a concentration of more than 50 percent in the red cells of persons heterozygotic for hemoglobin A and hemoglobin S (hemoglobin A/S) prevents the polymerization of the remaining hemoglobin S under phy... View More