PIM1 and diffuse large B-cell lymphoma: The proto‐oncogene PIM1, which was negatively correlated with miR‐497‐5p expression in DLBCL tissues (r = −.543, P < .0001, Figure S1C) and acted as an oncogene in DLBCL,33 was predicted as a candidate target of miR‐497‐5p.