CEBPA and acute myeloid leukemia: Most C/EBPα mutant AML patients harbour a combination of both N‐ and C‐terminal mutations locating in different alleles, also known as C/EBPα double mutations (DM), which ultimately lead to the absence of wildtype (WT) full‐length version, with the translation of p30, mutant p42 and mutant p30.5, 6