DNA samples from #3cHCC-CCA and #3N were subjected to amplicon sequencing using Ion AmpliSeq Comprehensive Cancer Panel (Thermo Fisher Scientific, Inc.), as described previously (13 (link)). Candidates for cancer (#3cHCC-CCA)-specific single-nucleotide variants (SNVs) were identified by Tumor-Normal Pair Analysis version 5.2 of Ion Reporter (https://ionreporter.thermofisher.com/ir/).