At present, at the age of 16 years, the patient no longer presents with anemia (Hb = 12.5 g/dL) and is currently managed only with folic acid supplementation, demonstrating non-transfusion dependence; however, he continues to have mild thrombocytopenia (platelet count of 89,000/μL). This evidence concerns the gene GSTM1 and Thrombocytopenia.