That is what most media reports missedeven though its the very first sentence of the paper
TME-responsive microrobots, CRISPR-based gene regulation systems and oncolytic viruses with microenvironment-adaptive properties can be scheduled or spatially coordinated with nanomedicine without being physically integrated into the same construct
Duan Y, Li F, Li Y, Tang Y, Kong X, Feng Z, Anthony TG, Watford M, Hou Y, Wu G, Yin Y
Finally, we showed that high-dose vitamin C therapy reduced both the number and size of tumors in KRAS or BRAF mutant mice as compared to mice without these mutations, confirming that vitamin C selectively targets KRAS or BRAF mutant tumors in mouse models of colon tumors
Toxicol Sci 87:156162
In addition, preoperative and postoperative biopsies would have been optimal but were not performed due to the extra cost