GSTM1 and beta-thalassemia intermedia: Herein described is for the first time Hb Queens Park was identified in association with Hb E in the fetus and with α0-thalassemia (SEA deletion) and Hb E trait, leading to the Hb Queens Park AEBart’s disease in the mother who demonstrated a thalassemia intermedia phenotype (Fig. 3A).