Aaron Reid, 20, prepares to receive treatment for his leukemia with CAR-T cell therapy at the National Institutes of Health in Bethesda, Md. Published August 16, 2018 at 5760 × 3836 in Aaron Reid, 20, prepares to receive treatment for his leukemia with CAR-T cell therapy at the National Institutes of Health in Bethesda, Md. Aaron Reid, 20, prepares to receive treatment for his leukemia with CAR-T cell therapy at the National Institutes of Health in Bethesda, Md.