Trends in allogeneic HCT activity in adult AML patients (≥ 18 years) by the use of unrelated donors according to disease status at HCT: cases registered with CIBMTR from 1998 to 2008. (A) Adult AML patients (≥18 years), CR1, CR2, CR3, and not in remission, undergoing unrelated HCT. (B) Adult AML patients (≥ 18 years) undergoing unrelated HCT in CR1.