EGFP expression in circulating hematopoietic cells following HIV lentiviral gene transfer and transplantation of rhesus cytokine-mobilized peripheral blood CD34⁺ cells. (A) RC505. First-generation lentiviral vector at 5 years, 8 months. (B) 95E132. Self-inactivating lentiviral vector at 4 years, 6 months. (C) 2RC003. Self-inactivating lentiviral vector at 14 months.