FLT3 and acute myeloid leukemia: We included studies comparing therapeutic effects between FLT3i and non-FLT3i group in AML, particularly <i>FLT3</i>(+) patients, or demonstrating the efficiency of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in <i>FLT3</i>(+) AML.