β-Spectrin Promissão: A Translation Initiation Codon Mutation of the β-Spectrin Gene (ATG → GTG) Associated With Hereditary Spherocytosis and Spectrin Deficiency in a Brazilian Family

To the Editor: Hereditary spherocytosis (HS) is a common inherited anemia characterized by the presence of spheroidal red cells and increased osmotic fragility of erythrocytes.[1][1] This disorder is heterogeneous in terms of its clinical presentation, molecular basis, and inheritance.[2][2] HS