Chimerism following haploidentical BMT with a conditioning regimen of ⁹⁰Y-anti-CD45 RIT with pre- and post-BMT CY. MFC analysis of peripheral blood 28 days after haploidentical BMT in a B6SJLF1/J transplanted mouse that received 1.5 × 10⁷ haploidentical BM cells on day 0 and (A) 300 µCi ⁹⁰Y-DOTA-30F11 on day −3 and CY (200 mg/kg per day on days −2 and +2) or (B) CY alone without RIT, depicting the percentage of CD8⁺ cells expressing the H-2D^d haplotype.