KRAS and neoplasm: First, knowing that one of the patients’ no. 124 primary tumor had a KRAS mutation detected with next-generation sequencing on DNA from 62 CD45−/CD44V6high cells, we performed droplet digital PCR, as described in the Supplementary file S1 (Figure 4B), from this patient blood sample to specifically search for this mutation (exon 2, G12V).