DLG2 and squamous cell carcinoma: It was found that in 2,616 coding genes, 2 or more integration sites presented among samples (Supplementary File S3), like RAD51B, MACROD2, FHIT, CSMD1, LRP1B, and DLG2 (Figure 5 and Figure 6), which had already been previously reported as frequent sites of integration in squamous carcinoma samples [10,33,34].