DFS from CR according to donor availability. The estimates of the 4-year DFS rates (± SE) for the donor group (dotted line) and the no donor group (solid line) are given. The 4-year cumulative incidence of relapse and of death in CR are given in italics at the right of the graph. N indicates number of patients; O, observed number of events (relapse or death in first CR). P is determined by the log-rank test.