HLA-identical sibling transplantation for AA as first-line strategy, data reported to the EBMT database 1975 to 2009. Ten-year survival is 34% ± 8% for patients transplanted 1975 to 1980 (n = 142); 60% ± 4% for patients transplanted 1980 to 1990 (n = 701), 73% ± 3% for patients transplanted 1990 to 2000 (n = 1377); and 79% ± 2% for patients transplanted 2000 to 2009 (n = 1951).