A 42-year-old woman with menorrhagia for over 3 years and dizziness, fatigue, palpitations, and shortness of breath on exertion for 6 months. Gynecological examination revealed uterine fibroids (leiomyomas). Laboratory tests: RBC 2.5×10<sup>12</sup>/L, Hb 50g/L, WBC 5.2×10<sup>9</sup>/L, PLT 201×10<sup>9</sup>/L, increased central pallor of red blood cells, serum ferritin 9μg/L. Diagnosed with iron deficiency anemia. Which of the following findings on bone marrow smear is NOT consistent with iron deficiency anemia?