IL10 and fibrosis: As shown in Figure 5a, three groups were set up: the fibrosis model only, the Ad‐IL10 group, and Ad‐IL10 + CMC group, in which all mice were treated with CCl4 twice a week for 4 and 8 weeks, while the mice in the Ad‐IL10 and Ad‐IL10 + CMC groups also received intrahepatic injections of the Ad‐IL10 and Ad‐IL10 + CMC, respectively, once every 10 days for 4 and 8 weeks.