PPM1D expression among AML patients with favorable‐risk, intermediate‐risk, and poor‐risk. The comparison of PPM1D mRNA relative expression among AML patients with favorable‐risk stratification, intermediate‐risk stratification, and poor‐risk stratification (A). Representative Western blot images presenting the PPM1D protein relative expression among AML patients with favorable‐risk stratification, intermediate‐risk stratification, and poor‐risk stratification (B). The comparison of PPM1D protein relative intensity among AML patients with favorable‐risk stratification, intermediate‐risk stratification, and poor‐risk stratification (C). Comparisons of PPM1D mRNA/protein relative expression among three groups were analyzed by Kruskal‐Wallis H test. P value < .05 was considered significant. AML, acute myeloid leukemia; mRNA, messenger RNA; PPM1D, protein phosphatase Mg2+/Mn2+ dependent 1D