IFNA2 and neoplasm: The first significant differences in tumor sizes occurred between week 0 (33.33 ± 24.29 mm2) and week 10 (1.97 ± 5.91 mm2) (p = 0.004) and continued onwards as shown in Fig. 1A. The percentages of tumor reduction were also significant and can be observed in Fig. 1C. A similar behavior was observed in the IFNα2b group, although in a later time.