IFNA1 and colorectal carcinoma: (E–F) Percentage of mice treated with NaCl (MC38 n=3 + 3; CT26 n=5 + 5 for each of two independent experiments) or IFNα (MC38 n=5 + 6; CT26 n=5 + 6 for each of two independent experiments) bearing at least one CRC liver metastasis estimated by MRI analysis at indicated time points after MC38 or CT26 injection.