APOBEC3B and B-cell non-Hodgkin lymphoma: While we found an increased number of APOBEC-like motifs in mature B cell lymphoma, we did not include the AID gene expression in our analysis because both the mutational sequence specificity of AID and the biological context in which AID mutations occur are different from those of APOBEC3B and APOBEC3A [1, 9, 10, 16].